Mercedes-AMG CLA 45 S: prices, specs and full details

Hot 415bhp Mercedes-AMG CLA 45 S saloon has reached the UK market, with a base-price of £52,145

The new Mercedes-AMG CLA 45 S 4MATIC+ is on sale in the UK now, priced from £52,145. It’s Affalterbach’s latest rival for the Audi RS3 saloon, which it now outguns by 20bhp thanks a total power output of 415bhp. First deliveries are due to arrive by winter this year.

Like the new Mercedes-AMG A 45 S, the CLA 45 S is powered by a turbocharged 2.0-litre four-cylinder engine, producing 415bhp and 500Nm of torque. As such, it has the highest specific output (horsepower per litre) of any production engine.

Advertisement - Article continues below

New Mercedes-AMG CLA 35 released

The engine sends drive to all four wheels via an eight-speed dual-clutch transmission. Mercedes claims the compact super saloon can dispatch the 0–62mph sprint in four seconds flat, before reaching an electronically limited top speed of 168mph.

Standard equipment for the CLA 45 S 4MATIC+ includes a set of 19-inch alloy wheels, red brake calipers, an AMG-branded steering wheel, a 64-colour customisable ambient lighting system, a 10.25-inch digital gauge cluster, a 10.25-inch infotainment system and a pair of heavily bolstered sports seats trimmed in artificial leather and suede.

The range-topping CLA 45 S 4MATIC+ Plus variant adds Multibeam LED headlights, a panoramic sunroof and a premium Burmester surround sound system. A restyled AMG body kit is also included, along with a suite of additional safety technology including traffic sign assist and blind-spot assist.

Advertisement - Article continues below

Mercedes’s latest 2.0-litre four-cylinder engine is essentially one bank of the twin-turbo V8 used by the AMG GT. The engine’s upgrades include several features from the brand’s super coupe, including low friction bearings for the turbo and a special coating for the cylinder liners.

Advertisement - Article continues below

Among other changes, the engine block has been spun through 180 degrees (relative to its position in its predecessor’s engine bay), which moves the intake manifold towards the nose of the car, and the turbo and exhaust manifolds towards the back. 

Mercedes-AMG claims this change improves cooling, while an improved two-stage fuel injection and larger exhaust valves in the cylinder head support the engine’s extra power. The exhaust itself has internal valves which open to produce a more raucous soundtrack under hard acceleration.

Mercedes-AMG says that it has tried to give the engine a character more akin to a naturally aspirated unit. As a result, the twin-scroll turbo is designed to minimise lag, while delivering peak torque quite high; between 5,000 and 5,250rpm. The rev-limiter, meanwhile, cuts in at 7,200rpm.

The CLA 45 S’s rear differential has a pair of clutches, one for each driveshaft, which allows power to be metered out precisely between each of the rear wheels. This, according to Mercedes, not only helps traction but allows the introduction of “Drift Mode,” meaning that the CLA 45 will engage in the sort of lairy tyre smoking action that’s something of a trademark of Mercedes-AMG models.

Advertisement - Article continues below

To keep pace with the extra output, the chassis has received further attention too. The bodyshell is reinforced, while extra underfloor struts and a brace between the front suspension strut towers all allow a more rigid base to allow for more precise suspension and steering geometry. 

Many of the suspension components are made from aluminium to reduce unsprung mass, the front track is wider, and the ESP system is able to nip the brakes individually to improve turn-in. These changes, according to Mercedes, are claimed to significantly increase cornering speeds.

The CLA’s styling is separated from its hatchback A 45 cousin thanks to a subtle reshaping of the front air dam, while the bonnet features a pair of “power dome” bulges. Around the back, the rear diffuser is bookended by four tailpipes, each measuring 90mm in diameter, while a subtle lip spoiler sits on the boot lid.

Mercedes’s MBUX infotainment system offers several AMG-specific displays, including one which positions a large rev counter right in the centre of the 12-inch digital instrument panel. In addition, there’s a unique gear indicator, a G-meter and lap timer. Take the CLA 45 to a track and (should the circuit be pre-installed on the system), its augmented navigation screen is also able to display racing lines in real-time.

Are you excited for the new Mercedes-AMG CLA 45 S? Let us know in the comments section below…



Visit New Mercedes-AMG CLA 45 S 2020 review
Mercedes CLA 45 AMG

New Mercedes-AMG CLA 45 S 2020 review

Flagship four-door Mercedes-AMG CLA 45 S coupe packs a punch in a stylish package
14 May 2020
Visit New 2019 Mercedes CLA 45 S Shooting Brake on sale now
Mercedes CLA 45 AMG

New 2019 Mercedes CLA 45 S Shooting Brake on sale now

Mercedes's more practical alternative to the Audi RS3 saloon has arrived, with brand-new turbocharged power
30 Aug 2019
Visit New 2019 Mercedes-AMG CLA 45 S review
Mercedes-AMG CLA 45 S - front tracking
Mercedes CLA 45 AMG

New 2019 Mercedes-AMG CLA 45 S review

The world's most powerful production four-cylinder engine finds its way into Mercedes-AMG's CLA 45 S
8 Aug 2019

Most Popular

Visit New facelifted BMW 5 Series takes aim at Audi A6 and Mercedes E-Class
BMW 5 Series

New facelifted BMW 5 Series takes aim at Audi A6 and Mercedes E-Class

The BMW 5 Series has been updated with styling and efficiency tweaks, while a new 545e performance plug-in model joins the line-up
27 May 2020
Visit VW to pay customer £25,000 following new Dieselgate ruling

VW to pay customer £25,000 following new Dieselgate ruling

Volkswagen has lost a landmark court case in Germany and must now pay significant compensation
26 May 2020
Visit New Volkswagen Golf GTI ride review
Volkswagen Golf GTI Hatchback

New Volkswagen Golf GTI ride review

Hi-tech new controls aim to keep legendary Volkswagen Golf GTI hot hatch’s driving dynamics at the top of the class
12 May 2020