Jaguar XF vs BMW M Models

What's the difference?

With that iron fist wrapped in a velvet glove wrapped in bubble wrap engine, excellent ride and gorgeous looks, the XF Sportbrake ticks all the boxes. Apart from the entry price and options prices, there are few objective reasons not to buy the car. It's just as good as any of its German competition and arguably the prettiest of the lot.

Should Jaguar have taken the dive? Given the XF Sportbrake is a luxury wagon done right, yes.

Brutal, bruising and utterly brilliant, the M4 CS will be an acquired taste due to its no-compromise approach, but those willing to take the leap will find a performance car like few others at their disposal.

The second-generation XF is a very pretty car. A few carmakers have a had a crack at that four-door coupe idea, but Jaguar's Ian Callum got it right first go. You might expect the wagon to be a bit dumpy but it's far from it. That's not to say wagons can't be good looking - many are better-looking than the car they're based on (the weirdly proportioned Golf wagon being the exception to the rule). The XF sedan just looks right.

Anyway, the Sportbrake is basically the same until behind the B-pillar, with the roof continuing on to steeply raked tailgate glass. Obviously the lights are different back there but it's a nicely integrated job, it doesn't look like a dodgy extension. Rolling on the optional 20-inch wheels it looks amazing - low, long and well-proportioned. Unfortunately, it's more than vaguely hearse-like in black (the only First Edition colour).

Inside is standard XF, with the obvious exception of the rear seats and the big open load area. With this First Edition's glass roof the cabin seems infinite. Either way it's big and comfortable, although fit and finish could be a bit tighter.

The M4 CS is familiar in all the right ways, but definitely looks significantly jacked up compared to its lesser siblings.

Part of that is the extensive use of carbon everywhere, from its bonnet panels to its roof, front lip, side skirting and boot spoiler. But also because of its super-muscular angles and creases, including the huge dome in its bonnet.

Also exclusive to this M4 CS is the light treatment, with the front LEDs lighting up with yellow highlights the brand says are supposed to be reminiscent of GT racing cars.

At the back, the rear lights are flush with fibre optic lighting, lending a flowing and unique light signature that looks epic at night.

Inside, it's a sea of carbon, with the lightweight racing seats, the dash inserts and the centre console all lined in it. It is a perfectly finished space, though, and one that's also flecked with red, including a 12 o'clock band on the thick-rimmed steering wheel, the seat backs, the contrast stitching and the paddle shifts.

Be warned, though, it takes some acrobatics to climb into or out of the CS. The seat bottoms have these super high edges that double as grab handles, but require some awkward contortions to navigate.

In short, it looks angry, this M4 CS, inside and out.

Front and rear passengers enjoy plenty of space. Storage includes a not-quite-big-enough-for-a-phone tray ahead of the rotary dial gear selector and a pair of cupholders. Those in the rear have plenty of space, except for the middle seat occupant who must straddle a stout transmission tunnel. The rear armrest holds a pair of cupholders and the doors have slim pockets.

The boot holds 565 litres with the seats in place and "up to" 1700 litres with the seats down - that latter figure does not feel like a VDA number.

It all boils down to how you classify practicality in a car like this. I mean, the basic stuff is all there – it's got two doors, four seats and a boot capacity of 440 litres.

It measures 4801mm in length, 1918mm in width and 1399mm in height, and room for front seat riders is good, but less so for anyone you squeeze into the back. There are even ISOFIX points for a child seat.

But if you consider practicality the practical pursuit of performance, then the M4 CS has plenty of perks.

We're talking a $254,900 entry price for the M4 CS, which – despite my attempts at justification – is a lot. Remember, the regular M4 is $168,700, and the M4 Competition is $186,500, so we're talking a sizeable premium here.

BMW justifies that price increase in two ways. The first is scarcity, with the M4 CS limited to just 50 examples in Australia. And the second is by dialling up every aspect of the M4's performance to terrifying levels.

The engine outputs are up, the weight is 20kg down, there are better brakes, better seats, a louder exhaust, a stiffer chassis – it goes on and on.

We'll get to some of the performance stuff in a moment, but here's what else your money buys you with the M4 CS.

It starts outside with staggered alloys, 19-inch up front and 20-inch at the rear, wrapped in track-ready rubber. There's also hi-po 'M Compound' brakes with red calipers, lightweight carbon racing seats that are heated up front, an Alcantara-trimmed steering wheel, the 'M Carbon' exterior package with carbon bonnet and roof, adaptive 'M Suspension' and a titanium exhaust that howls like the winds of hell.

The less performance-focused stuff is similar enough to the other M4 models including a 12.3-inch centre screen with digital radio, Apple CarPlay and Android Auto, a second 14.9-inch screen that handles your driving data and a head-up display. There's also twin-zone climate control, Merino leather upholstery and ambient interior lighting.

But all of that is secondary, really. This is about performance, specifically of the brutal kind.

The First Edition ships with Jaguar's 3.0-litre twin-turbo diesel V6. Good for 221kW and a prodigious 700Nm, power heads to the rear wheels via an eight-speed ZF automatic.

With all that power and torque, the XF Sportbrake cracks 100km/h from rest in 6.6 seconds.

The air suspension means you can tow up to 2000kg with a braked trailer.

BMW has found yet more grunt lurking in its trusty 3.0-litre 'M TwinPower' six-cylinder petrol engine, with the M4 CS now pumping out 405kW and 650Nm.

That's a decent jump from the 390kW and 620Nm served up by the M4 Competition, and a giant leap from the outputs of the 'base' M4 – 353kW and 550Nm.

Predictably, then, the CS is the fastest of the lot, knocking off the run from 0-100km/h in 3.4 seconds, compared to 3.5 and 4.2 in the Competition and M4, respectively. The top speed is also dialled up to 302km/h.

All that power is channeled through an eight-speed automatic and sent to all four wheels on demand, with the help of an 'Active M Differential'.

Jaguar claims a combined-cycle figure of 5.9L/100km. Our time with it was mostly shuttling around the suburbs with a couple of highway runs and we managed a respectable 8.3L/100km.

The M4 CS is fitted with a 59-litre fuel tank, which – given the BMW's official fuel claim of 10.2 litres per hundred kilometres – should deliver a driving range on a full tank of 541 kilometres.

But... BMW also says the regular M4 – you know, the one that makes 52 fewer kilowatts and 55Nm less torque – uses 10.1L/100km, so do with that information what you will.

There's no getting away from the size and heft of the Sportbrake. Where a four-cylinder sedan comes in under 1600kg - not bad for an almost five-metre-long car - up here at the top it's well over 1800kg. With big wheels and a long wheelbase it's not going to win any wards for manoeuvrability, with a big turning circle and a length that's challenging to shopping centre car parks.

The 3.0 V6 twin-turbo is a fantastic unit. It can be a bit noisy when cold but it's super smooth and with all that torque it crushes overtaking with little need for advanced planning. The Sportbrake wafts along, lazily turning over in traffic and keeping the vibe calm.

Despite those big wheels, the ride is excellent. Even when in Sport mode, it's a rare bump or surface that will cause drama. It's very comfortable and very quiet, almost to the level of the XJ limo.

If you do fancy a bit of amusement, the V6 and well-sorted chassis are ready to play. In reality, Sport mode is where both myself and my wife left the car the whole time we had it. Both of us found the steering a little too light and preferred the more lively throttle response. The XF features torque vectoring using the brakes and coupled with a well-judged stability and traction control system, it delivers a good impression of a sporty sedan.

But the XF is best when you keep it relaxed. Both in town and in the cruise, it's a lovely, quiet place to be and a relaxing, undemanding drive. 

Only a couple of things were annoying - the light steering we've already covered. The heated windscreen was more reflection-prone so the head-up display could be hard to see in some lighting conditions. And sometimes it beeped for no apparent reason, which I eventually traced to the blind-spot warning.

The hardest and angriest M4 of all time is, perhaps unsurprisingly, hard and angry. This is a race track specialist, but because I don't happen to own one of those, my first experience with the barking (and barking mad) M4 CS was navigating my way back from BMW's inner-city dealership.

Like it or lump it, you're going to read some Porsche comparisons here, because you're talking not too far off base 911 Carrera money, and suddenly I find the two Germans doing battle for a spot in my dream garage.

First things first, the BMW won't be much chop for daily driving for most people. Happily, I have a sickness for uncomfortable sports cars. It tells me that no compromises have been made in the pursuit of punishing performance.

A good thing, too, because the BMW, at city speeds, can be punishing. Everything feels heavy, the seats aren't overly comfortable – especially the hard bits that tend to dig in when cornering – and it stiff-arms its way over road imperfections, that exhaust booming and barking as it does.

Again, I loved it, and you probably will, too. But it's still not the kind of car I'd relish sitting in the morning peak hour rush in.

But escape the confines of the city and the BMW M4 CS suddenly makes a whole heap of sense. The acceleration is genuinely brutal, and wonderfully theatrical, with that quad-tipped titanium exhaust barking and snarling as you rocket towards 100km/h.

The steering is brilliant, with feedback fed to your wrists via that thick-rimmed wheel, and the entire experience feels sharp, super engaging and edgy.

You can push the M4 hard and fast, and I'm certain my limited talents would run out far before the BMW's would, but there's this thrilling sense of peril sparked by the aggression of the experience, that I love.

It's like the magic of a roller-coaster, I guess. Even if you know nothing is going to happen, you never really know, right? And in that lies the magic.

But back to original question, this or a Porsche 911? There's no doubt a Carrera is a better all-rounder, in terms of comfy commuting and race track fun, but this angry M4 is all shouty theatrics, all of the time.

I bloody love it.

Expect no ANCAP rating here, I'm afraid. But the BMW 4 Series does wear a five-star rating from 2019.

The M4 CS gets six airbags (driver and passenger, side airbags, head airbags), along with what BMW calls its 'Driving Assistant Professional', which bundles active cruise control (with stop and go function), front and rear cross-traffic warning, 'Steering & Lane Control' and 'Lane Keeping with Side Collision Warning'.

Jaguars are offered with a three-year/100,000km warranty with a matching roadside-assist package. You can purchase a five-year/130,000km service plan for an oddly reasonable $2200. Even more reasonable are the service intervals - 12 months or 26,000km (!).

The M4 CS is covered by BMW's five-year, unlimited-kilometre warranty, with condition-based servicing available in packs, which will cost you $3530 over five years/80,000km, or $2900 over four years/60,000km.