A-Class (W177) [Official] Mercedes-AMG A45 S And CLA 45 S


The W177 hatchback was launched in 2018 as the successor to the W176 Mercedes-Benz A-Class. It is available as a 5-door hatchback (W177 model code), 4-door sedan (V177), and a long-wheelbase sedan exclusive to China (Z177).

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Mercedes-AMG A45 S And CLA 45 S Storm Into Goodwood With 416 HP

Behold the world's most powerful four-cylinder production cars.
Following a painstakingly long teaser campaign that started last year, the new Mercedes-AMG A45 has finally arrived. It’s not alone at the Goodwood Festival of Speed as the hot hatch is joined by its cooler cousin – the CLA 45. Unlike the previous generation of “45” cars, these new AMGs have spawned an even hotter “S” version offering more power and other upgrades.

With the menacing grille up front with literally a dozen of vertical slats and the quad exhausts at the back, you can immediately tell these cars are a step up from the warm “35” variants. In addition, both feature front canards and a more aggressive rear end with a roof-mounted spoiler in the case of the hatchback and a prominent trunk lid spoiler for the sedan. Beefy wheel arches further denote we’re dealing with the range-topping versions of the two model lineups.

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The base variants of the A45 and CLA 45 ride on 18-inch alloy wheels as standard whereas the S models are fitted with a 19-inch set. Opt for the flagship version and Mercedes will eschew the gray-painted brake calipers of the base model in favor of larger red calipers with black “AMG” lettering instead of white and larger discs.

Without a shadow of a doubt, the highlight of these cars is the newly developed turbocharged four-cylinder engine. The 2.0-liter unit codenamed “M139” produces 382 horsepower (285 kilowatts) and 480 Newton-meters (354 pound-feet) of torque in the standard model and an impressive 416 hp (310 kW) and 500 Nm (369 lb-ft) in the S. Regardless of the one you go for, the engine is hooked up to an eight-speed, dual-clutch automatic transmission and a 4Matic+ all-wheel-drive system.

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As far as performance is concerned, the base A45 needs four seconds flat to reach 62 mph (100 kph) from a standstill and is electronically capped at 155 mph (250 kph). You can opt for the AMG Driver’s Package that will unlock a maximum velocity of 168 mph (270 kph), which is still electronically governed. The A45 S will complete the sprint a tenth of a second sooner, in only 3.9 seconds, and hit the higher top speed right from the start.

When it comes to the CLA 45 and the CLA 45 S, they’re both a tenth of a second slower than the equivalent A45 model due to a slightly higher weight. In other words, the standard CLA 45 does the sprint in 4.1 seconds while the S variant in 4.0s. Top speed is identical to the A45 models.

Regarding the drift mode that has been extensively teased, it’s standard on the S model and optional for the non-S cars. The tail-happy nature of the two cars can be accessed by enabling the Race driving mode (one of the six available), turning off the ESP, and switching the transmission to manual mode.

It goes without saying the A45 / A45 S won’t be available in the United States where the A-Class hatchback is not sold. The U.S. press release only talks about the base CLA 45, which is scheduled to go on sale in North America towards the end of the year.

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Mercedes-AMG A45 S And CLA 45 S Storm Into Goodwood With 416 HP
 
And here it is, to my knowledge the first family hatchback to dip into the 3 second zone for 0-100 km/h. Insane.
 
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Hothatch redefined!

This car will go like a rabbit hare that just nibbled on a carrot dipped in wasabi and mustard.
 
@Giannis,
Could we get a little use of your recent specialisation in Turbos with your mechanical engineering study?
What is the advantage for MB in using roller bearings for their turbos in the A45S?
My guess is that in that way they do not need pressurized oil lubrication and is better suited for heavy thermal loads, but in the same time I see two big disadvantages-one is more and heavy rotating parts, which increase the rotational inertia and in that way making the turbo spooling slower and I suppose it's less durable, because in the normal turbo bearings the wear is somehow compensated by the preassure of the oil (as is the case also with main and conrod bearings).
Would be very interesting to hear your, dare to say, expert in that field opinion.
 
Can you call keep an eye out for the power brand graph. I’m really curious about its power delivery.
 
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More info on the Drift Mode, please.
When is the SB 45s coming out?
AMuS report that there is a special gearbox at tge rear axle, but Germans call gearbox (getriebe) each device that has gears in it. It could be a LSD,it could be the solution that Focus RS is using-without differencial, while each semiaxle has its own clutch pack to power it.
 
AMG Performance 4MATIC+ all-wheel drive with AMG TORQUE CONTROL


The extremely dynamic driving experience in a completely new dimension is greatly assisted by the fully variable all-wheel drive included as standard. The secret is AMG TORQUE CONTROL in the new rear axle differential: This has two electronically controlled multidisc clutches, each of which is connected to a rear axle drive shaft. In this way the drive power can not only be completely variably distributed between the front and rear wheels, but also selectively between the left and right rear wheel. This means that depending on the driving mode and situation, the drive torque can be separately distributed to both rear wheels.

The result is consistently optimum traction, even in adverse road conditions and during extreme cornering manoeuvres, for example on the racetrack. Furthermore, this sophisticated solution allows Drift mode (standard in the S-models, included in the optional AMG DYNAMIC PLUS package for the basic models), which makes "powersliding" possible for even more driving pleasure.

Drift mode can be called up in the "RACE" driving mode using the shift paddles, provided that ESP® is deactivated and the transmission is in manual mode.
That's all they say
 
I think they went a bit too far on the styling of the A35 - too little differentiation IMO.
 
Can you ask them in what way they send power to the rear wheels.

I'm not sure any of the people would have been able to give a more technical explanation than, it's 4matic. Press release seems more informative
 

Mercedes-AMG

Mercedes-AMG GmbH, commonly known as AMG (Aufrecht, Melcher, Großaspach), is the high-performance subsidiary of Mercedes-Benz AG. AMG independently hires engineers and contracts with manufacturers to customize Mercedes-Benz AMG vehicles. The company has its headquarters in Affalterbach, Baden-Württemberg, Germany.
Official website: Mercedes-AMG

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