Just when we thought AMG had lost its way, the CLA 45 S has reignited our passion for performance cars from Affalterbach. We believe that the CLA is the most magnetic and exploitable package in the current AMG stable, channelling the raw energy of last-generation Mercs that favoured brute strength over civility, much like the AMG GT R or the rabid C 63 Black Series (W204). Looking back, that was peak AMG.

The new crop of AMGs has grown softer and more comfortable, catering to a wider audience that does not view stiff suspensions and thirsty V8 engines as top priorities. But in that transition, AMG appears to have lost their vision. Case in point: the hybridized C 63 that ditches a V8 for an overly complex four-banger. Yes, it’s powered by an e-turbo with tech ties to Formula 1, but it forgot to add soul. The halo sports car, the AMG GT, is heavier than before, comes with all-wheel drive, and even has two extra seats in the back – these are not the core values that inspired enthusiasts to flock to AMG in the first place. This CLA 45 S AMG and the M139 engine, though arguably a remnant of the last-generation models, remind us that emotion is central to what makes a good performance car. Ironically, the oldest and cheapest AMG is also the most entertaining. 

The CLA 45 S commands a steep $74,300 starting price, which puts it squarely against the BMW M2 ($78,300) and Audi RS 3 ($80,950). However, that price includes a handcrafted turbo-four engine that we classify as a nuclear weapon. It’s capable of 416 horsepower and 369 lb-ft of torque, and is paired with an 8-speed dual-clutch transmission, all-wheel drive, a three-stage stability control system, three-stage damper setup, sticky Continental tires, and racy exhaust modes.

While it may be slower than the Audi RS 3 from 0-100 km/h (4.1s versus the Audi’s 3.8s), this AMG’s insatiable urge to explode out of corners at wide open throttle is confidence-inspiring, and shows the competent AWD system and adjustable electronics at play. The performance we were able to extract consistently provided a therapeutic shock to the system, a dose of ECT that reignites the dulled senses and forces a tidal wave of dopamine.

The firework display is accessed later in the powerband, meaning you subconsciously drive it harder, with third gear at 4,000 rpm kicking in with a vengeance, and suitably shrinks straight roads into brief second-long disruptions until the next corner. It catapults off the line without any turbo lag or hesitation from the snappy gearbox, and we do not doubt that the CLA will outclass any M2 or GR Supra once the raindrops begin to splash on the windscreen. The rear differential features two electronically controlled multidisc clutches that distribute torque evenly between the two rear wheels for optimal torque vectoring. This means the nose of the CLA scythes in nicely and the rear eagerly follows suit under power, exhibiting neutral handling behaviour with a bias towards mild understeer. 

Be that as it may, the rivalling BMW M2 is inexplicably smoother and more polished in almost every department compared to the AMG. The M2 provides silkier vocals at full song compared to the CLA’s aggressive four-cylinder racket, it rides better over porous surfaces, and isn’t as inherently compromised in terms of cabin packaging and headroom. And that’s exactly what the new class of AMGs is trying to target, but this cramped, raw, and rough CLA is exactly the type of agile, light, and scruffy sports car that’s missing in today’s market.

The exhaust pierces through the ozone layer, its sharp mechanical howl is scintillating, and its crispy downshift wail is addictive. There is no pesky soft limiter, either, meaning it will rev to its 7,000 rpm unhindered in park or neutral gears. The composed ride lets you feel the body roll and how much lateral grip and purchase the tires are providing. Our only gripe would be the gearbox, which experiences low-speed hiccups and inconsistencies, particularly during transitions between first and second gears.

We think the CLA 45 S is the most attractive AMG in the portfolio, and certainly more handsome than the odd mix of polygons and blocked shapes they call an M2. The CLA is low, sleek, and unapologetic about its vibrant Patagonic Red paint, and the front grill cleanly integrates AMG’s signature vertical slats. But we find it odd that there are rounded quad exhaust tips out back instead of the typical AMG rectangular ones.

Inside is a similarly performance-themed affair, featuring a swanky steering wheel loaded with gadgets and an array of digital screens and ambient lighting panels. The fan vent designs are shaped like a wind turbine but here’s a fun fact: AMG also integrates these fan vents on the Mercedes Formula 1 pit wall. 

Although the center-mounted touchpad was frustrating to use, we find ourselves missing it. Now, the only way to input commands is to reach for the touchscreen, which is mounted a bit far from the dashboard. The haptic sensors on the steering wheel are another option but we all know they are overly sensitive, inconsistent, and never do what you want them to. The alternative is voice command via the ‘Hey Mercedes’ function, which became our preferred method of interacting with the system. We are glad they still kept a proper volume dial in the center, along with a shortcut button for adjusting dynamic modes to change ride stiffness, stability control, powertrain strength, and exhaust sound. However, the shortcuts on the steering wheel render this feature moot.

Forget what you know about the new crop of AMGs. This somewhat old-school, if you can even call it that, CLA 45 S provides the addictive thrills, raw performance, and scintillating sensations that we thought had gone missing in silver star attaché. Although its cabin package may be inherently compromised in terms of space and functionality, we value its compact footprint, road compliance, and relative fuel efficiency. Being able to extract its maximum performance so easily gives it that sweet layer of approachability that seldom comes standard with these focused road cars. Cancel the code yellow but call the firemen, because this red AMG is on fire.

Specifications:

Model: 2024 Mercedes-AMG CLA 45 S 4MATIC+ Coupe
Paint Type: Patagonia Red
Base Price: $74,300
Price as Tested: $87,630
Wheelbase(mm): 2,729
Length/Width/Height (mm): 4,695 / 1,999 / 1,404
Engine: 2.0-litre turbocharged four-cylinder (hand-built)
Horsepower: 416 hp @ 6,750 rpm
Torque: 369 lb-ft @ 5,000 – 5,250 rpm
Transmission: 8-speed dual-clutch automatic
Engine & Drive Configuration: Front engine, AWD
Observed Fuel Consumption (L/100km): 10.6
Tires: 255/35ZR19 XL; Continental SportContact 6