Skip advert
Advertisement

Posaidon’s modified Mercedes-AMG A35 packs A45 S-rivalling 395bhp

A new turbocharger has given the Mercedes-AMG A35 a healthy bump in output, bringing it close to its £50k sibling 

Posaidon has already been playing around with AMG’s A45 S, lifting output to 518bhp for a ludicrous 201mph top speed, but now the German tuner has worked its magic on the lesser A35.

Its new RS 400 kit will lift the standard 2-litre turbocharged petrol engine to 395bhp and 405lb ft of torque, a 93bhp and 111lb ft gain over standard. To reach these figures, more than an ECU tune is required, with Posaidon swapping the A35’s standard turbocharger for a more powerful and thermally efficient unit. The seven-speed DCT also receive software tweaks to help extract its maximum performance.

Advertisement - Article continues below

> This Mercedes-AMG A45 S has a 201mph top speed

Its 0-62mph time now comes in a brisk 4sec, seven tenths sooner than factory, and just a tenth slower than the £50,000 A45 S. Perhaps more impressive is the new 183mph top speed, raised from the standard 155mph, thanks to a removal of the electronic speed limiter.

Posaidon also offers a lesser ECU tune to bring output to 350bhp and just over 350lb ft of torque. In this form, four tenths is lopped off the 0-62mph sprint in this form, bringing the sprint down to 4.3sec.

Local pricing and availability is yet to be confirmed, but if it keeps costs reasonable a modded A35 that looks and goes just like its substantially more expensive A45 S sibling could make it seem a relative bargain.

Skip advert
Advertisement

Recommended

BMW M135 v Mercedes-AMG A35 – which is the best £50k hot hatch?
A35 v M135
Group tests

BMW M135 v Mercedes-AMG A35 – which is the best £50k hot hatch?

BMW’s M135 xDrive has found some much‑needed focus with its new M Dynamic Pack, but is it enough to give it the edge over Mercedes‑AMG’s A35?
11 Jan 2026
Mercedes-AMG A35 review – the VW Golf R rival is still worth a second look
Mercedes-AMG A35
Reviews

Mercedes-AMG A35 review – the VW Golf R rival is still worth a second look

The Mercedes A-class was thought to soon be discontinued. On the contrary, even the hot A35 soldiers on. It’s still a good hot hatch
25 Sep 2025
Skip advert
Advertisement

Most Popular

Can BMW’s £50k sports coupe beat the Audi RS3? – car pictures of the week
Audi RS3 and BMW M240
Features

Can BMW’s £50k sports coupe beat the Audi RS3? – car pictures of the week

In the current issue of evo, we test BMW’s updated M240 against the Audi RS3 – these are our favourite shots
18 Jul 2026
Toyota GR Yaris Aero Performance review – one of the best hot hatches just got better
Toyota GR Yaris Aero Performance – front
Reviews

Toyota GR Yaris Aero Performance review – one of the best hot hatches just got better

The winged GR Yaris Aero Performance has arrived, with more aggressive looks and incremental mechanical upgrades making it the best version yet
17 Jul 2026
Rolls-Royce Phantom review – the epitome of excess and British engineering excellence
Rolls-Royce Phantom Series II
Reviews

Rolls-Royce Phantom review – the epitome of excess and British engineering excellence

Despite its age, the eighth-generation Rolls-Royce Phantom remains in a class of its own as the most luxurious way to travel by road by a significant …
20 Jul 2026