Cadillac Lyriq vs Lexus RX300

What's the difference?

The Lyriq Luxury combines handsome styling and luxurious appointments with responsive yet supple ride quality, the choice of relaxed driving or exhilarating performance as desired and a decent driving range. Its lack of towing ability may be a deal breaker for some, but it's certainly worthy of consideration by prestige SUV buyers with a penchant for electric power and (for now at least) sub-$100K drive-away pricing.

The Lexus RX300 is luxurious but affordable, making it great value and superbly comfortable, with a high level of fit and finish. Fear not about the four-cylinder engine being small – it makes plenty of grunt and handles daily duties perfectly well.

Which would you go for: An entry level Lexus RX300 or a top-of-the-range Mazda CX-9? Tell us what you think in the comments below.

The Lyriq has a generous 3095mm wheelbase, is more than five metres long (5005mm) and almost two metres wide (1977mm, including mirrors). Its 1620mm roof height is relatively low for a large SUV, resulting in a sleek and sporty profile combined with a muscular surefooted stance fronted by a finely-etched solid grille.

It rides on five-link independent suspension with GM’s ‘passive plus’ dampers, plus there’s electric power-assisted steering and big Brembo disc brakes in each corner featuring classy Cadillac scripts on the calipers. Turning circle is 12.1 metres, which is to be expected for a car of this size.

The interior design is an elegant blend of soft-touch materials and discreetly textured surface finishes with an emphasis on chrome and satin chrome highlights. It’s also spacious as you’d expect, with the panoramic sunroof creating a bright and airy feel.

We applaud Cadillac’s adherence to tradition with physical buttons and knurled dials and knobs for controlling key cabin and driving functions, in preference to annoying and distracting touchscreen menus. There’s also nice attention to detail with small jewel-like Cadillac emblems and scripts contributing to its prestige look and feel.

I've mentioned the Spindle grille and its jewellery-like appeal, and even the sharp edges of this SUV make the RX300 look like a carved gemstone, but I'm not the biggest fan of this vehicle's proportions. I think the door-to-window ratio is a bit off. There's just too much door for my liking.

That said, I'm intrigued by the craftmanship, the attention to detail and the use of materials, which make this SUV both pretty and intriguing.

The cabin mixes the plushness of cushioned surfaces on the dash and the armrests  with pleasing design elements, like the swooping aluminium trim, which zig-zags its way from the instrument cluster to the passenger's side of the centre console.

The giant media display is impressive, but the functionality is awkward, to say the least, but more on that in the practicality section below.

The Luxury is the entry grade into the RX model and so comes with smaller wheels than the F Sport and Sports Luxury above it, but it does score roof rails, dual chrome exhausts, a roof-top spoiler and rear privacy glass.

How big is the RX300 Luxury? The dimensions show it to be 4890mm long, 1895mm wide and 1690mm tall.

How do the looks compare with rivals such as a Jeep Grand Cherokee, a Mazda CX-9 or a Land Rover Discovery? Hmm, each has its own distinctive styling, with the Jeep having brutish American looks, the Discovery boasting prestige British off-roader personality and the Mazda an elegant air that's way beyond its price point.

So why haven't I mentioned the Mercedes-Benz GLE or BMW X5? Because they're at least $20K more than the RX300 Luxury, which costs around $72K. If, however, you can stretch the budget to an RX 350 Sports Luxury then you will be crossing the $100K threshold into Benz and Bimmer territory. So let's talk about price.

The Lyriq’s 2687kg kerb weight (largely due to its hefty propulsion battery) and 3200kg GVM results in a modest 513kg load capacity, which could easily be used up by five large adults before you could think about loading their luggage. It’s also not rated for towing in Australia which limits its appeal as a recreational vehicle.

Driver and front passenger enjoy palatial space and comfort plus ample storage with a bottle-holder and bin in each door. There's also a large glove box, pop-out drawer in the dash and a ‘floating’ centre console equipped with a lower tray, three USB-C ports, a 12V socket, wireless phone charging and a felt-lined box at the back with padded lid that doubles as an elbow rest.

The rear doors open wide for easy entry to the rear bench seat which even for tall people (I’m 186cm) offers ample room for knees and feet, enhanced by a flat floor with no transmission tunnel for centre passengers to straddle.

However, the top of my head brushes the roof lining and the unusually high floor height (we assume caused by the underfloor battery) results in raised thigh angles that concentrate more weight on the lower back.

Given the rounded lower backrest cushions, which integrate with the ISOFIX child seat anchorages in the outer seating positions, also protrude into a passenger's lower back region, the rear seat provides less than ideal comfort for tall passengers in contrast to the sublime luxury up front.

Even so, rear passenger storage is well catered for with a bottle-holder in each door, pockets on both front seat backrests and two cupholders in the fold-down centre armrest. The rear of the centre console offers two more USB-C ports, adjustable air vents and adjustments for numerous comfort settings.

The power tailgate provides access to the fully carpeted rear luggage area, which offers up to 793 litres (almost 0.8 cubic metres) of load volume with the rear seats upright and up to 1722 litres (almost 1.8 cubic metres) with the seats power-folded flat. This provides a versatile space for carrying everything from a mountain bike to flatpack furniture.

The luggage area also has four tie-down hooks, a 12V socket and a hinged floor section which when opened reveals an underfloor bin ideal for storing charging cables (see image).

The RX300 is a five-seater SUV and, while it would be even more practical if there was a third row, the cabin is impressively spacious.

Have a look at my photo of the entry to the RX300's back seat – that's a big doorway  for a car. Parents will understand the value of wide-opening doors and these ones made it easy for my child to climb into his car seat and for me to buckle him up. Head and legroom in the back seats are also good, even for me at 191cm tall, while the flat floor makes it easy to 'scoot' across from one side to the other.

There are two cupholders in the fold-down centre armrest in the back and small door pockets, but storage up front is better, with huge pull-out door pockets, two more cupholders and a large centre-console bin.

There's a wireless charger in the hidey hole in front of the shifter, plus six USB ports on board - the rear passengers have two of their own in the back of the centre console and the rest are up front.

The second row doesn't come with climate control, but the directional air vents back there got a workout over the 40C days we had over summer.

The RX300's boot has a cargo capacity of 506 litres, measured to the top of the second-row seat back.

Now,  the media system. Yes, it's a tech thing, but I'm calling out it out as impractical. The functionality of the trackpad used to navigate around the screen is frustratingly awkward. I think 12 swear words in a row came out of me on one occasion (no child on board, obviously), just trying to use the sat nav. The layout of the display menu is also confusing and non-intuitive.

The RX300 received a stack of new equipment in the September 2019 update,  including a 12.3-inch media screen (previously 8.0-inches), Apple CarPlay and Android Auto, plus four additional USB ports (for a total of six), and a kick-open power tailgate. The list price is $71,920 before on-road costs.

Other standard features include a 12-speaker stereo with DVD player, sat nav, wireless charger, dual-zone climate control, 18-inch alloys wheels, LED headlights, proximity unlocking, heated wing mirrors, rear privacy glass, and powered front seats.

The update added more safety tech, too, along with some changes designed to make the driving experience better, which I'll tell you about below.

You're not getting the heated seats and the head-up display that you do on the F Sport, or the Sport Luxury's Mark Levinson stereo, but the value is great here,  especially compared to more prestige brands, which ask more money for the same or less equipment.

The Mazda CX-9 Azami lists for $69,303 and offers more features, but the Lexus brand has more luxury badge appeal than the Mazda, or the $69,950 Jeep Grand Cherokee Limited, while the $73,221 Land Rover Discovery 2.0 i4S beats all of them in the prestige stakes because… it's British. And they have a royal family.

The Lyriq features drive units with single-speed transmissions located at the front and rear which provide permanent all-wheel drive. Each is equipped with an electric motor, which combined produce 388kW of power and 610Nm of torque. There are also numerous selectable drive modes. Claimed 0-100km/h acceleration time is a rapid 5.3 seconds.

The RX300 has a 2.0-litre four-cylinder turbo-petrol engine making 175kW and 350Nm, with a six-speed automatic transmission. This peppy four-cylinder gives the RX300 a completely different feel to the lethargic-but-powerful oomph of the RX350 and its naturally aspirated V6, even though it doesn't make a great deal more grunt, at 221kw and 370Nm. There's a difference in fuel consumption, too – find out how different below.

Is the RX300 all-wheel drive? Nope, it's a front-wheel drive. Only the RX350 and RX450h are AWD.

GMANZ claims official combined consumption of 22.5kWh/100km and up to 530km of driving range from the Lyriq’s 102kW lithium-ion propulsion battery.

When we collected our test vehicle the dash display was showing 100 per cent charge and an estimated driving range of 583km.

We drove 239km over five days and still had 52 per cent charge and 300km of range remaining when we did an overnight charge at home using the supplied AC charger with a domestic three-pin plug.

However, after 15 hours the charge only increased from 52 to 65 per cent for just 76km of extra driving range, so we would recommend installing a dedicated wall box for faster home charging.

In total we covered 297km across our usual mix of suburban, city and highway driving with average energy consumption just under the Cadillac's official figure, so based on our test results a driving range of around 500km per charge is credible.

GMANZ claims 7.4kW AC charging can add up to 43km of range per hour, which increases to 94km with 22.1kW charging. And up to 128km of range can be added in just 10 minutes using 190kW DC fast charging.

Lexus says the RX300, with its 2.0-litre four-cylinder turbo-petrol engine, should use 8.1L/100km of premium unleaded after a combination of open and urban roads. My own testing over 375.4km - taking in motorways, city and suburban call-of-daycare drop-off-duties - had our RX300 using 11.79L/100km, measured at the petrol pump. The real-world results almost always exceed that of the manufacturer's claims so you can expect the V6-powered RX350, with its claimed 9.6L/100km, to have a much higher mileage again after the same kind of usage.

The driving position is supportive and comfortable with multiple power-adjustment of the seat and steering wheel ensuring people of most heights and girths can enjoy luxurious travel.

The low dashboard height ensures vision to the front of the bonnet and its array of physical buttons, knurled dials and knobs minimise touchscreen use, which makes driving far less distracting than having to search through digital menus.

It’s very quiet given its electric drivetrain. Most noise emanates from the tyres but that is also minimised by the audio system’s noise cancellation technology and the cabin’s effective acoustic insulation.

Ride quality and handling are excellent thanks to the Lyriq’s suspension refinement and close to an ideal 50-50 weight distribution mostly influenced by the positioning of its drive battery.

This battery’s considerable heft (we reckon it weighs at least half a tonne) also creates ample sprung weight to assist the suspension in smoothing out bumps and its underfloor location ensures a low centre of gravity for surefooted cornering.

Standing start acceleration is more than impressive for a luxury car weighing almost 2.7 tonnes, with instantaneous torque from its two electric motors helping to propel the Lyriq to a neck-straining 100km/h in about five seconds.

This spirited response creates a sporty and engaging drive that belies the vehicle’s weight, particularly in Sport mode with its sharper throttle response and firmer steering feel.

We also like the choices for regenerative braking which include ‘One Pedal Driving’ mode with 'Normal' and 'High' settings, both of which make the quartet of disc brakes largely redundant (the High setting feels like heavy pedal braking) while optimising battery charge. There’s also a small paddle on the steering wheel which increases regenerative braking in response to the amount of finger pressure applied to it.

Our only criticism from a driver’s point of view is the absence of a head-up display (HUD) and traffic sign recognition (TSR), both of which are notable omissions for a prestige vehicle in this price range.

Good seats are the start of a good driving experience and I've not met a Lexus that doesn't have superb pews – from the uber luxury models, such as the LS500 and ES300, to sports cars such as the RCF or LC500, they all have supportive and comfy ones. Lexus somehow manages to  combine the comfort of a lounge chair yet still holds you firmly, all while placing you in a great driving position. The RX300 is no different. Large enough to fit me and my 191cm frame, yet bolstered enough to feel snug.

As for performance, the RX300, with its four-cylinder turbo-petrol engine with its six-speed automatic, is responsive and a bit hyperactive feeling. It's a very different sensation to piloting the RX350, which has a V6 and delivers its grunt in a more linear and lethargic fashion. Having driven both back-to-back I'd say the V6 and its eight-speed auto suits the RX personality better, but the 300 is a car that would have had a school report card that read: "Lots of potential, but lazy".

That said, plant the right foot and the RX350 will get the message to hurry up and can do the 0-100km/h sprint in eight seconds flat. The RX300 is keen but can't match it, with  a time of 9.2 seconds.

Either way, the ride comfort is excellent, although body control could be better - the speed bump and roundabout route I take to do the preschool drop off caused it to  get the wobbles, but give the RX300 a motorway and it'll cruise beautifully.

Forward visibility is good but vision through the tiny rear-quarter window (it's even smaller than it looks) while reverse parking isn't great.

The RX300 scored the maximum five-star ANCAP rating when it was tested in 2016. The September 2019 update added more safety tech to the RX300, including nighttime pedestrian detection and daytime cyclist detection for the AEB system, while the adaptive cruise control was given lane-trace assistance and road-sign recognition. This is on top of the already standard safety equipment, such as a reversing camera, blind-spot monitor and rear cross traffic alert.

Ten air bags, along with auto high beam, front and rear parking sensors, two ISOFIX points and three top-tether mounts for car seats and a space-saver spare wheel round off a comprehensive safety package.

The Lyriq comes standard with a five-year/unlimited km warranty including five years' of roadside assist, while the propulsion battery is covered by a separate eight-year/160,000km warranty.

Scheduled servicing is every 12 months/12,000km whichever occurs first, with costs for the first five years of scheduled servicing or five scheduled services included in the vehicle’s purchase price. These servicing terms are generous for this segment, although some rivals offer similar enticements like Audi’s six-year ‘complimentary’ servicing for its Q8 e-tron.

GMANZ has a national network of 45-50 dealerships across most capital cities and some regional areas but not all offer vehicle servicing.

Lexus recommends servicing the RX300 annually or every 15,000km, with the first three services capped at $595.

The duration of Lexus's factory warranty is four years/100,000km, which is a bit longer than BMW and Benz's coverage, but behind the five-year/unlimited-kilometre warranties of the mainstream brands.