2014 Mercedes GLA45 AMG review

  • 355bhp baby SUV tested
  • 0-62mph in under five seconds
  • On sale in June, from around £44k

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The Mercedes GLA45 AMG is one of a very small number of extreme high-performance small SUVs. Equipped with a 2.0-litre turbocharged petrol engine (the same unit as the A45 AMG hot hatchback), the range-topping GLA offers the unusual blend of supercar straight-line performance with the slightly raised driving position that's become so popular in the past couple of years.

This is such a small niche that relatively few manufacturers have decided to enter it - which is why the GLA45 AMG is desperately short of obvious rivals. The only genuine one is Audi's RS Q3, although you could argue that the turbo petrol versions of Range Rover's Evoque are other targets.

Either way, what you're left with is a bespoke performance baby SUV that can crack 0-62mph in under five seconds and, if Mercedes' claims are to be believed, offer a more rewarding drive on twisty B-roads than most other SUVs. You'll pay for it, mind; no price has been confirmed but we've been told to expect a figure of 'around £44,000'.

What's the 2014 Mercedes GLA45 AMG like to drive?

The good news is that the GLA45's immense powertrain hasn't lost anything in its translation from the 'conventional' A45 AMG - which is to say that the combination of seven-speed dual-clutch transmission and 355bhp is pretty impressive. True, the recalibrated transmission's automatic modes aren't foolproof, and it can even trip over itself in manual mode if you suddenly ask it to shift down a couple of ratios in a hurry - but for the most part it delivers stonking performance.

It's surprisingly flexible for such a highly strained engine, too; there's decent shove from just under 2000rpm and by the time you're at 3000rpm you're already picking up speed at an illegal rate. Nor does the engine run out of puff particularly early, either; it'll happily pull to more than 5500rpm. That 0-62mph of 4.8 seconds gives you some idea of just how fast the GLA45 AMG feels.

The engine's note varies wildly depending on what you're doing. It can sound a little rough if you're pootling around town, but its crisp note when you're pushing on is almost like a race motor (helped by raucous exhaust backfires on upshifts). It's a pity that induction whoosh tends to intrude in those circumstances, though.

The GLA45 AMG's performance might be right up there with the strongest hot hatchbacks, but on a winding road there are occasional reminders that you are sitting higher up in a pseudo-SUV. The steering is pleasingly direct, but the GLA isn't quite so keen to change direction as a lower, more focused hot hatchback.

Chuck it at a corner and you're most likely to be feel the front wheels running wide. Should you then attempt to bring the nose back in towards the inside of the corner by lifting off the throttle, you may find yourself a bit surprised at just how far the rear end is allowed to slip before the car's electronic stability control scoops you up and prevents you from having an accident. Keen drivers will find it amusing - fun, even.

Nor does this unusual level of proficiency for an SUV come at the expense of ride comfort. There's no denying that the GLA45 AMG's set-up is firm, but its combination of revised ride height, thicker anti-roll bars and revised springs and shock absorbers does a decent job over broken surfaces, even at low speeds.

What's the 2014 Mercedes GLA45 AMG like inside?

The first difference you'll notice between the GLA45 and regular editions is the seats, which are more deeply bolstered than usual and more supportive as a result. That aside, the cabin looks pretty similar to the lesser GLAs', albeit with the option of carbonfibre trim on the front of the fascia, and contrast red stitching to give a more sporty feel. There's also a revised instrument cluster and a race-timer integrated into the central infotainment screen.

The main controls all fall easily to hand, with Merc's steering column-mounted gearshift for the automatic transmission freeing up a fair amount of front cabin space. The infotainment system – which is controlled via a rotary dial between the front dials – isn't quite as intuitive as BMW's iDrive system, but it's still relatively easy to use. 

Clambering into the rear will remind you that the GLA is not a full-sized SUV; the aperture at the back doors isn't particularly wide and once you're in place, there's only average leg- and headroom for anyone beyond six feet tall. Think of it as a regular family hatchback that you climb into instead of falling into and you'll get a fair idea.

The boot is a fair size, at 481 litres, rising to 1235 litres if you lower the 60/40 split rear seats. For comparison, that's 60 litres more standard capacity than Audi's Q3, but around 90 litres less with the seats folded. The GLA does suffer from the same problem as the A-Class, with wide rear shoulders that don't help the loading access. An electrically operated rear hatch is offered as an option.

Should I buy one?

We find it hard to recommend a £45,000, 355bhp petrol SUV on a number of levels – although if your heart is set on something with family hatchback space, a raised ride height and the equivalent of a small nuclear reactor under the bonnet, we'd look at the GLA45 AMG before taking a test drive in, say, Audi's RS Q3.

However, a more sensible option altogether would be to opt for BMW's X3 xDrive35d - which isn't quite as chuckable as the GLA, but offers rapid straight-line pace, greater all-round practicality and, since it's a diesel, much lower running costs.

What Car? says…


Specification
Engine size 2.0-litre turbo petrol
Price from £44,000 (est)
Power 355bhp
Torque 332lb ft
0-62mph 4.8 seconds
Top speed 155mph
Fuel economy 37.6mpg
CO2 175g/km

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