Comparison: 2015 Mercedes-Benz C63 AMG vs. 2015 BMW M3

BMW M3 | April 9th, 2015 by 20
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Automobile Magazine test drives and compares the 2015 Mercedes-Benz C63 AMG and 2015 BMW M3. The two powerful sedans are the benchmark in their segment …

Automobile Magazine test drives and compares the 2015 Mercedes-Benz C63 AMG and 2015 BMW M3. The two powerful sedans are the benchmark in their segment and head-to-head comparisons are inevitable.

The competitor to the F80 BMW M3 launches with two power variants coming from a 4.0 liter V8 bi-turbocharged engine that delivers 470 hp and 650Nm (479 lb-ft) in the base model, and 503 hp and 700Nm (516 lb-ft) in the C63 S AMG. This is the same engine found on the Mercedes-AMG GT sports coupe. Automobile uses the entry-level C63 AMG for this test.

Power is sent to the rear wheels via a seven-speed AMG Speedshift automatic transmission.

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From 0 to 100 km/h (62 mph), it only takes 4.1 seconds for the C63 S AMG and 4.2 seconds for the base model. Both cars are limited to 250 km/h (155 mph).

The F80 BMW M3 features the S55 3.0 liter inline-six TwinPower engine producing 425 horsepower and 406 lb-ft of torque. The power is sent to the rear-wheels via a six-speed or an optional 7-speed M DCT transmission. For comparison, with the seven-speed DCT, the M3 and M4 need 4.1 seconds from 0 to 100 km/h, switching to manual speed, the two cars need 4.3 seconds

Top speed is governed at 155 mph for both the BMW and the Mercedes. Also, Mercedes barely beats BMW in fuel economy, hitting 29 mpg combined on the European cycle versus 28 mpg for the M3. The Mercedes will start at $64,825 in the States, $1,875 more than the BMW.

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Here is an excerpt from their review:

Both engines have musical talent, although the sound engineers at M and AMG alike have dialed in too much computer-generated background music. There’s fake heeling-and-toeing, fake blat-blat on overrun, fake upshift ka-chumm, fake idle-speed thud. For the AMG car, you can specify an even more hooliganesque triple-flap exhaust, which sounds positively puerile.
On Portuguese country roads that have not yet been resurfaced with European Union money, the M3 is not happy. Not happy at all. Its rear wheels scrabble about the poor pavement whenever we nail the accelerator, even when we’re already rolling at 130 mph. The Bimmer’s rigid chassis shines on the track and on smooth A-roads, but it backfires when the going gets rough.
The C-Class pulls out a small lead here, but it, too, has flaws. The low-speed ride is, for instance, disappointingly brittle, and body roll is occasionally an issue. And when it comes to crunch time, the C63 AMG will try to ever so slightly understeer out of trouble. Through the same series of corners taken at comparable velocity, the M3’s nose bites, turns in, and holds the line. And if all else fails, the M3 still has an old-fashioned hand brake to yank in the hairpins.

20 responses to “Comparison: 2015 Mercedes-Benz C63 AMG vs. 2015 BMW M3”

  1. bandile says:

    Eish but why have these two german manufacturers opt for fake sound? Computer generated engines sounds are a big turn off. #Bimmer4Life

    • Horatiu B. says:

      Most of the industry does it these days.

      • bandile says:

        funny thing is i asked a local BMW dealership salesman about this fake sound and he said BMW doesn’t do fake sound in any of its cars but i didn’t trust him. Now this article has proved me correct about this fake sound. We own a BMW 335i GT and deep down i’ve got my suspicions of it.

        • Mohamed Boukachabia says:

          tuning and manipulation of the exhaust system has been for a while now , but channeling the sound through the speakers is the new trend lately

        • Horatiu B. says:

          BMW states that 90-95% is natural sound. But honesty I never measured it

          • bandile says:

            so considering what @otto (below this comment) said about the C63 AMG, the BMW M3 has a smaller engine and has a possibility of some artificial sound. Why does BMW even consider artificial sound? As a multiple award winning car manufacturer they shouldn’t even think of such. I expect the artificial sound from TATA and Nissan (considering how Nissan believes a lot in electronic powered engines). no disrespect to the Brands

    • Otto says:

      I just read an interview of the AMG boss. He claims that there is NO artificial engine sound system in their C63.

      • bandile says:

        Okay great because of its bigger engine compared o the M3. i like that.

      • 2fast4u2 says:

        Yes, that’s like it is. I think in the article is meant the sounds while downshift (double-declutch) and the overall exhaust system. Don’t know about the M3, but in other BMW 3, the engine sound is supported by in car the audio system :p.

    • 2fast4u2 says:

      Only BMW M3 needs fake sounds. Rumor has it is a sound file from AMG.

  2. JRobUSC says:

    they glossed over this in the article, but considering how much time they spent talking about traction and ride quality I am surprised that no one has brought up the fact that the M3 didn’t have the factory spec Michelin Pilot Super Sport 2 tires on it. They mentioned it didn’t have the right tires, but didn’t mention what tires (or wheels) were actually on the car for this test. That could make a pretty huge difference.

  3. Autopal says:

    What is shocking, is that the AMG, with its thunderous V8, beats the M3 for fuel economy. I mpg might not sound like a lot, but we were told that fuel efficiency was one of the main reason BMW was ditching the old V8. These cars are very close, performance wise, but man, the AMG sound really good!! That V8 could be a dealbreaker for guys on the fence.

  4. It seems like these two are closer than ever. I love the M3 but that AMG Merc is badass as well. It’s a tough one for me.

  5. 2fast4u2 says:

    Compared to the old C63, the new one is a cut diamond that also makes non-professionals beat cars like an M3 now.

  6. […] BMW M3 is the benchmark of performance compact executive 4-doors. The monstrous torque of the Mercedes-Benz C63 AMGmakes it a hammer in a velvet glove. Many automakers have tried to mimic the M3 and nearly all have […]

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