Alfa Romeo Junior vs Lexus Rx450H+

What's the difference?

The Alfa Romeo Junior is a cute car that’s charming and smile-inducing. It deserves to sell well but ultimately this will come down to whether the Australian public is receptive.

There is plenty of competition out there and if you're wanting something design-led, it's hard to look past this without spending much more money.

Note: CarsGuide attended this event as a guest of the manufacturer, with travel, accommodation and meals provided.

The new Lexus RX450h+ Sports Luxury is packed with a wealth of premium features and strikes a solid balance between refinement and practicality. There are enough thoughtful touches that make everyday driving a little easier.

You’ll get the most out of the plug-in hybrid powertrain if you’re able to charge it regularly; ideally every day. That might not always be practical for busy people on the go, but overall, the RX450h+ manages to blend efficiency with Lexus’ signature comfort and quality.

This is such a cute and tiny car with Alfa Romeo trying its hardest to sandwich all of its hallmark design traits in. It’s certainly a busy design on the outside which I don’t love right now, but I imagine I’ll grow to like it with time.

At the front there’s a special grille as standard that features Alfa Romeo script, plus an offset license plate and cool matrix LED headlights with the company’s ‘3+3’ lighting signature.

Around the side the 18-inch alloy wheels have a flower petal-like design, hidden second-row door handles, as well as a hidden serpent (Biscione) easter egg that’s laser etched into the C-pillar.

The rear of the Junior is my least favourite angle. It tries too hard to look more like a hatchback than a crossover SUV with the slanted rear window and the big black slab where the tail-lights are.

The twin exhaust pipes are a cute look, however, especially given the engine doesn’t scream performance credentials on paper.

Inside there’s an obvious attempt at making the cabin look and feel driver-oriented and sporty.

I like the seats which have a red section that runs down the backrest and onto the seat base. It helps break up the black finishes nicely.

Speaking of, however, there's a sea of black finishes throughout the rest of the cabin. I’d like to see some more silver or chrome accents as the glossy piano black may not age well.

There is interior ambient lighting around the cabin with a customisable colour, which looks great in low-light situations. It particularly pops in the large circular air vents which flank the dashboard and are shaped like cloverleaves.

If you look closely you may notice the Junior shares a lot of its physical switchgear with the related Jeep Avenger. Examples include the steering wheel buttons, gear selector, starter button and the physical climate control switches.

While there’s an argument to say that this cheapens the feel of the Junior, I’m thankful there is physical switchgear in this car to begin with. Plus, the Junior does look different enough as it is.

The RX isn’t breaking new ground with its plug-in hybrid design, but it still delivers that signature Lexus understated refinement.

The strong, flowing body lines, 21-inch alloy wheels and updated 'spindle grille' all give it presence without screaming for attention.

And in a segment where boxy and bulky designs tend to dominate, the RX’s swoopy silhouette helps it stand apart in all the right ways.

Inside, the cabin feels considered and luxurious. There's a heavy use of premium materials, including the leather and suede upholstery, plush soft-touch surfaces and the big, crisp displays that make the space feel modern and high-end.

The panoramic sunroof brings in loads of natural light, too, which is especially welcome given the dark headliner that might otherwise feel a little heavy.

If I have one gripe, it’s the thin steering wheel, which doesn’t quite match the otherwise solid, tactile feel of the rest of the interior. But overall, the cabin is a space that feels luxurious and well-executed. It's quietly confident, just like the RX.

The front seats in the Junior are very comfortable for longer drives. The driver’s seat in particular offers six ways of electric adjustability and a massage function. You don’t see features like that very often on a tiny SUV.

Ahead of the driver there’s a leather-wrapped steering wheel. It’s surprisingly slim which makes it nice to hold. There are also paddle shifters on the back which could be more pronounced.

As standard there’s a 10.25-inch digital instrument cluster which emulates analogue dials for the tachometer and speedometer. While the screen is high-res and clear, it’s interesting that Alfa Romeo chose to emulate dials in a digital way rather than just have physical ones, especially because you can’t change their appearance.

There’s a section in the middle that has a few different informative pages you can cycle through. I’d love to see more configurability given there’s limitless possibilities with a screen.

Moving across there’s another 10.25-inch screen for the central multimedia system. It certainly makes up for the lack of configurability in the digital instrument cluster and you can create and customise five different home page screens with a vast array of widgets. It’s fairly clever though at some point it feels like overkill.

There aren’t many menus or sub-menus to get lost in, however, the home button took me a while to locate. It’s above the touchscreen in a small pod of physical buttons alongside the hazard lights and door lock switch.

Underneath the touchscreen there’s a wireless phone charger, plus USB-C and USB-A charger ports.

The engine start button is mounted prominently on the centre tunnel with the lightswitch-like gear selector directly behind it. It’s mounted a little too close to the centre armrest which means craning my arm like a T-Rex to use it.

Other amenities up front include a deep console area with configurable cupholders, a sliding centre armrest with a cubby, as well as a tiny glovebox.

It’s very clear the second row of the Junior isn’t the focus. At 182cm tall I need to splay my legs on either side of the driver’s seat in my desired driving position. Despite this, toe room and headroom is adequate, even with the optional sunroof.

The second row isn’t a place anyone would want to spend too long in. Kids would likely suit better, plus there are top-tether points on all three rear seats and ISOFIX mounting points on the outboard rear seats.

Amenities are limited to a single USB-C port in the second row. There are no air vents or centre armrest. You need to make your own entertainment.

At the back there’s a hands-free power tailgate, which is rare for a vehicle of this size. Once it’s open, the available boot space is decent, especially for such a small car. There’s 415L of boot space with the rear seats upright.

The area itself is fine. There’s no load lip which allows you to get things in and out with ease, plus there’s a two-tier boot floor, allowing you to stow items under the floor away for prying eyes.

In terms of boot-related amenities there’s a 12V socket, a light and some hooks. It’s fairly standard back there.

Unfortunately there’s no spare wheel as standard in the Junior line-up. Instead there’s a tyre repair kit which is not super handy if you have a tyre blow out.

Thankfully you can purchase a space-saver spare wheel for the Junior Ibrida for $314 as a genuine accessory. It would be better if this came as standard given there’s the space for it.

The RX cabin is thoughtfully laid out and impressively practical, with a premium feel that doesn’t come at the cost of everyday usability.

Up front, there’s plenty of space for driver and passenger, yet the stepped dash design brings a sense of intimacy. The electric front seats are seriously comfortable, with four-way lumbar support and extra adjustment functions that make this an easy choice for long drives.

Storage options are generous, too. There’s a clever dual-opening centre console, large glove box, multiple phone-sized shelves, map pockets and a couple of cup- and drink holders in each row.

Charging is taken care of by four USB-C ports, one USB-A port and a wireless charging pad.

Tech is up-to-date and well-integrated. The upgraded 14-inch media display looks crisp, supports wireless Apple CarPlay and Android Auto, and is paired with a revamped 12.3-inch digital instrument cluster and a colour head-up display.

The cluster’s new layout is modern and much easier to read than the previous offering. The digital rear view mirror also earns its keep when the cabin’s packed with passengers or gear.

One of my favourite touches? The seat controls on the side of the front passenger seat. It makes quick work of moving the seat forward, especially helpful when you’ve got a kid clambering in with a school bag full of projects.

Access to the rear row is easy, but the stadium-style seating, where you're perched noticeably higher than those in the front, won’t be for everyone.

That said, the rear seats are plush and padded, though they lack side bolsters, which rear passengers might notice during cornering.

Legroom is generous and the hardened kickplates are a dream to clean when your child’s treating the seatbacks like a climbing wall.

My eight-year old gives the back seat a glowing review, thanks to its creature comforts, including rear climate control, directional air vents, seat heating/ventilation on the outboard seats, two USB-C ports and retractable sun-blinds, which are a crowd favourite in our household.

There are three top-tether anchor points, and the bench is wide enough to fit three child seats, though bulky booster seats might be tricky due to the raised seating height.

At the back, the boot is well set up for families, offering electrically folding rear seats, a 12-volt socket, flat loading floor, and a hands-free powered tailgate.

Under the floor, there’s a small compartment for your charging cables (Lexus throws in two!) and a usable 612L of capacity when all seats are in use. One downside, though, is the lack of a spare tyre as you just get a tyre repair/inflation kit.

There are four variants in the RX range, and we’re testing the 450h+ Sports Luxury AWD, which sits just below the flagship and packs in plenty of premium kit for its $123,500, before on-road costs, price tag.

That makes it slightly more affordable than its main PHEV rivals; the BMW X5 xDrive50e (from $125,885 MSRP) and the Volvo XC90 Ultra (from $124,466 MSRP).

The Volvo does offer seven seats to the Lexus’ five, which may matter for larger families, and both rivals also outdo the RX on electric-only driving range - 65km in the RX compared with 77km in the Volvo XC90 and a generous 101km in the BMW X5.

Still, the RX fights back with a seriously stacked features list. Highlights include a panoramic sunroof, 10-way powered front seats with heating and ventilation, electrically folding rear seats (also heated and ventilated in the outboard positions), and a heated, power-adjustable steering wheel. Sound is taken care of by a premium 21-speaker Mark Levinson surround system.

Technology has had a solid upgrade with the 14-inch touchscreen multimedia display, 12.3-inch digital instrument cluster, digital rearview mirror, colour head-up display, live traffic navigation, wireless Apple CarPlay and Android Auto, 4G connectivity, four USB-C ports, one USB-A port and a fast wireless charging pad.

There’s also access to the 'Lexus Connected Services' app, allowing you to remotely lock or unlock the vehicle, pre-set the cabin temperature via three-zone climate control, configure driver profiles and even use your phone as a digital key.

Practical features include keyless entry and start, rain-sensing wipers, dusk-sensing LED headlights, rear sun-blinds, intelligent seatbelt reminders for the first two rows, a child presence alert and a hands-free powered tailgate. However, due to the plug-in hybrid system there’s no spare tyre, just a tyre repair kit.

The Junior Ibrida is powered by a 1.2-litre turbocharged three-cylinder petrol engine with 48V mild-hybrid assistance.

In the six-speed dual-clutch transmission is a 21kW electric motor that’s fed by a 0.9kWh lithium-ion battery pack.

It’s worth noting that this is the exact same engine set-up that features in a growing number of Peugeot models locally, including hybrid versions of the 2008, 3008, 5008, 308 and 408.

Total system outputs are 107kW and 230Nm which is far from class-leading. Alfa Romeo claims the 0-100km/h sprint takes 8.9 seconds.

Under the bonnet the RX450h+ Sports Luxury runs a plug-in hybrid powertrain that pairs a 2.5-litre four-cylinder petrol engine with a CVT auto and dual electric motors - one on each axle. Together, they produce a total of 227kW of power, though Lexus doesn’t quote a combined torque figure.

Still, it’s quick off the mark for a large SUV, with a 0-100km/h time of 6.5 seconds. There’s more than enough grunt for daily driving and overtaking, even if it doesn’t quite match the outright power of its key PHEV rivals.

The Junior Ibrida has a claimed fuel consumption of just 4.1L/100km, which is solid for a mild-hybrid vehicle.

There’s a 44L fuel tank which requires a minimum of 95 RON premium unleaded petrol.

During our 200km drive loop on the launch which consisted of mixed and spirited drive, we returned an average of 5.4L/100km. However, during one section with fewer twists and turns we saw an average of 4.0L/100km, which is incredible.

Using our as-tested fuel consumption there’s a theoretical range of 815km.

The plug-in hybrid system brings solid efficiency, with claimed fuel use of just 1.3L/100km. In real-world conditions (mostly urban driving with regular recharging) I managed a respectable 4.8L/100km, which makes a strong case for the hybrid set-up.

The fuel tank holds 55 litres and it's worth noting Lexus recommends using a minimum of 95 RON unleaded petrol to fill it.

Using our real-world economy figure you can expect a range in excess of 1100km between fills.

The RX450h+ is fitted with a relatively small 18.1kWh lithium-ion battery, supporting an NEDC electric-only range of up to 65km.

While that’s fine for short daily trips, it’s shorter than you'd ideally want in a family SUV of this size and it lags behind rivals like the BMW X5 and Volvo XC90 in this department.

Charging is simple enough. The RX uses a Type 2 charging port and accepts up to 7.0kW on AC power, which means a full charge takes around 7.5 hours, perfect for overnight top-ups. Lexus also includes an at-home charging cable and second adapter cable as standard, which is a thoughtful touch.

Starting up the Junior Ibrida, the turbo three-cylinder engine roars to life with an off-beat, thrum-y sound.

If the engine is bone cold, it’ll stay on to get the fluids up to operating temperature. Once this happens it will happily switch off.

Initial acceleration is typically done on electric power alone and if you don’t press the accelerator too hard it’ll stay in EV mode at city speeds. It’s very electric-heavy for a car that’s technically only a 48V mild-hybrid.

At many points the engine switches off at speeds up to 80km/h, especially if you’re travelling on flat ground. Even at 100-110km/h, it’ll switch off if coasting.

Something to note is the electric motor is part of the six-speed dual-clutch transmission which means you can sometimes feel gear changes even when driving in EV mode. You do get used to this.

A positive of the electric motor being in the dual-clutch is it helps iron out awkward pauses and jerks that this type of transmission typically presents. It’s still not perfect though.

If you press the accelerator harder or the battery charge gets lower, it’ll inevitably fire up the three-cylinder engine. It makes a rorty note during acceleration which is fun to listen to.

The transition from electric to petrol is generally seamless. There can be a slight shudder when the three-cylinder first fires up at low revs, but I’ve experienced much worse in other cars.

There’s only one setting for regenerative braking, which is fairly strong and almost one-pedal-driving like. It takes a bit to get used to the feeling. You do still need to put your foot on the brake pedal to come to a complete stop.

With the combination of the petrol engine and electric motor, acceleration is far from break-neck but it’s far from slow. The fact it doesn’t have much power actually makes this car more endearing, especially because it’s rewarding to drive.

The steering in the Junior is communicative and direct. It's a joy to take corners in as the feel errs more on the lighter side. It almost has a Mini-like go-kart feel as the car feels so nimble.

Additionally, the ride is composed and settled, even at higher speeds on rough roads, which is rare for small vehicles. This is likely because the Junior only has 18-inch alloy wheels with a decent amount of tyre sidewall, rather than the low-profile 20-inch units that are offered in the Veloce Elettrica overseas.

On the highway the Junior’s cabin is surprisingly quiet. You can’t hear the three-cylinder once you’ve reached your set speed and there’s also minimal wind/tyre noise.

Lastly, the safety systems do a good job at working but not being annoying. The worst culprit is the intelligent speed limit assist which chimes when you go over the signposted speed limit.

If it does grate you too much, you can easily switch it off in a dedicated advanced driver assist system (ADAS) menu that can be reached via a shortcut button near the hazard lights. It’s as easy as that.

The RX450h+ delivers power that’s pert and prompt, with genuine bursts of acceleration that make driving fun. It’s always ready to go and there's no lag in stop-start traffic - which gives it a lively, dynamic feel around town.

The transition between petrol and electric power is seamless; you hardly notice the switch, which makes for a smooth, refined driving experience. The cabin is impressively quiet, even on the highway, making long trips comfortable and peaceful.

Regenerative braking isn’t adjustable and is subtle enough that many won’t notice it which is likely a plus for fans of traditional internal combustion engines who are making the PHEV leap.

The adaptive variable suspension adds a sporty edge to handling, letting you confidently take corners at speed. There’s some body roll but the RX never feels top-heavy or unsettled.

The steering carries the weight of the SUV but remains well-balanced and responsive. Overall, it’s a well-tuned machine that’s a pleasure to drive.

Maneuverability is a strong suit, too, thanks to a tight 11.8-metre turning circle and a clear, easy-to-use 360-degree camera system. Parking is easy-as-pie, which a lot of drivers will appreciate.

The RX earned a maximum five-star ANCAP safety rating in 2022, scoring highly across all protection categories: 90 per cent for adult protection, 89 per cent for child protection, 89 per cent for vulnerable road users, and 93 per cent for safety assist systems.

Standard safety gear includes eight airbags (dual front, front side, curtains, front centre, and driver’s knee) plus a comprehensive suite of driver aids. Standout features include emergency call functionality, child detection alert, side exit assist, front and rear collision warnings, park assist and emergency steering assist.

Additional tech covers blind-spot monitoring, driver attention monitoring, tyre pressure monitoring, daytime running lights, LED cornering lights, rear cross-traffic alert, lane departure alert, lane keeping assist, traffic sign recognition, and intelligent seatbelt warnings for the front two rows.

Visibility and parking are enhanced by a 360-degree camera system and front/rear parking sensors, while adaptive cruise control adds comfort on longer drives.

The rear seats have two ISOFIX mounts plus three top tether anchors, accommodating child seats safely. Autonomous emergency braking is active from 5.0 to 80km/h for pedestrians, cyclists, and backover and up to 180 km/h for cars.

Like other Alfa Romeos, the Junior is covered by a five-year, unlimited-kilometre warranty.

There’s also five years of roadside assistance as standard. An additional 12 months of coverage can be added for the lifetime of the vehicle every time you service at an authorised Alfa Romeo dealer.

Logbook servicing is required every 12 months or 15,000km, whichever comes first. The first five services are capped and total $3105.84, which averages out to around $620 each.

This seems pretty expensive for such a small car, but it's only a touch pricier than the Lexus LBX.

It’s clear maintaining this vehicle with its dual-clutch automatic transmission and mild-hybrid components is costly in the long run.

The RX comes with a five-year, unlimited-kilometre warranty, which matches its key rivals but isn’t exactly class-leading by today’s standards.

Servicing is handled via a capped-price program, with each service costing $695. The intervals are well spaced at every 12 months or 15,000km, whichever comes first.

This Sports Luxury grade also includes a three-year complimentary 'Lexus Encore' membership, granting access to a handy phone app and member benefits at partners like Westfield and Ampol. On top of that, you get 24/7 roadside assistance for added peace of mind.