We’ve been big advocates for hot hatches ever since they were spawned in the 80s and we’ve written in length about why we think the hot hatch market is the most exciting there is. But a Nürburgring-based tuning company thinks otherwise; they’ve seen fit to take the Mercedes-Benz A45 AMG (the fastest 2.0-litre hatch on the market) to a whole new level, and the results are going to either amaze you or horrify you.

You see while the stock car produces 355 bhp and 332 lb/ ft of torque, the Mercedes A45 AMG Renntech 495 produces an eye-watering 452 bhp and 393 lb /ft of torque. That increase is enough to give the A45 a 0 – 62 mph time of 3.9 seconds, a vast improvement on the stock time of 4.6 seconds. As we’re sure you’ll agree, that’s a lot of performance for a 2.0-litre road car. It’s actually faster than an Audi RS4. And it wouldn’t be embarrassed by an RS6. Wowzers.

What they do with the Mercedes A45 AMG Renntech 459

So how have they done it? With more than a remap, of course. Renntech basically takes the stock A45 AMG and bolts an uprated turbocharger onto it that safely tolerates 2.05bar of boost and updates the software to match. Further enhancements include a downpipe sport cat exhaust. Naturally, they also uprate the brakes and suspension. As part of the 459 package, you get Pagid racing brake pads, Renntech performance brake hoses and Bilstein coilovers. So it’s a full tuning set up.

Cosmetically, Renntech has also released its own updates for the A45. The optional carbon fibre bonnet and some 19-inch forged alloy wheels. There’s also a decal pack.

The Mercedes A45 AMG Renntech 459 pricing review

So how much does all of this cost? Well, how much is an arm and a leg? The turbocharger and software update will set you back £3,500 while the brake and suspension update will cost you £2,050. The cat back exhaust is an additional £1,935 and those tasty 19-inch alloy wheels will set you back a stunning £6,000 – and that’s for bog standard silver ones, you pay more for titanium, gun metal or two tone alloys. So to get the car pictured in the image above, you will have to give Renntech an excess of £10,000. Yikes.

But that’s the price you pay for a set up like this. Renntech has a rich history of tuning German cars and buyers know that they will get a set up that’s of an extremely high quality – and nobody else is offering a tuning pack like this for the Mercedes A45 AMG at this time.


If you don’t have £10,000, there is a silver lining. We can tune your Mercedes A45 AMG for a fraction of this price for impressive gains of 30bhp and 30 lb /ft, bringing the power output to a not inconsiderable 385bhp and 352 lb /ft. That’s enough to wipe the smirk off an RS3 driver’s face or snap a Volkswagen Golf R in half.

Sound good? Get in touch with us today to find out more!