We’ve already covered the 2011 Cadillac CTS-V against the new 2012 M5, but what about BMW’s Stuttgart rival?

Since the E28 BMW M5 first came on the scene in 1988, BMW has absolutely owned the factory super sedan market. That is, until Mercedes-Benz decided to get serious; in 1997, Mercedes-Benz, now owning their tuning brand, AMG, outright, they decided to produce a limited run E50 AMG to compete in Europe against the BMW M5. It wasn’t a bad start, but it was when they brought us here in the states the E55 AMG in 1998 that things got serious.

These days, though, Mercedes takes their fight against BMW’s M5 very seriously. They’re definitely the most bitter and closely matched rivals, especially with the new M157 twin-turbo 5.5-liter V8 in the 2012 E63 AMG, that’s a pretty tough competitor to the 2012 BMW M5 sporting a twin-scroll turbocharged 4.4-liter V8. Let’s have some specs and pictures, shall we?

2012 Mercedes-Benz E63 AMG

  • 5.5-liter twin-turbo V8
  • 518 hp at 5500 RPM/550 hp at 5500 RPM with AMG Performance Package
  • 516 lb-ft of torque at 1700 RPM/590 lb-ft at 2000 RPM with AMG Performance Package
  • 7-speed MCT
  • 4,050 lbs
  • Mercedes-Benz 0-60: 4.3-4.4/RawAutos estimate: 3.7-3.9
  • 2011 MSRP (including gas tax and destination charge): $90,175
  • Sedan only, as of now. May come in coupe form in 2013
  • 7.1-8.1 lb/hp (estimated for models with and without AMG Perf Pack)
  • 5.5-liter twin-turbo weighs just 450 lbs
  • Compression ratio: 10.0:1
  • Limited-slip differential optional with AMG Performance Package
  • AMG high performance two piece brakes with 6 piston calipers front and 4 piston calipers rear
  • Brake size front/rear: 14.2 in/14.2 in
  • Tires front/rear: 255/35 R19 – 285/30 R19
  • 113.2 inch wheelbase
  • Trunk capacity: 15.9 cubic feet
  • Suspension front: Independent wheel suspension, coiled spring, torsion bar, 3-link wheel control/axle location
  • Suspension rear: AMG Airsprings

2012 BMW M5

  • 4.4-liter/268 cu-in. “TwinPower Turbo” V8
  • 560 hp at 5750 RPM
  • 502 lb-ft of torque at 1500 RPM
  • 6-speed manual or 7-speed M-DCT
  • Est. weight: 4100-4300 lbs
  • 7.3 lb/hp
  • BMW 0-62: 4.4 seconds/RawAutos 0-60 est.: 3.5-3.7 seconds
  • Est. MSRP: $105,000
  • Sedan only
  • The engine on the 2012 M5 has a twin-scroll single turbocharger, which BMW calls TwinPower
  • Compression ratio 10.0:1
  • M Differential linking to Integrated Chassis Management (ICM)
  • 6 piston front and rear brake calipers with vented and cross-drilled rotors
  • Brake size front/rear: 15.7 in/15.6 in
  • Tires front/rear: 265/40 R19 – 295/35 R19
  • 116.7 inch wheelbase
  • Trunk capacity: 18.4 cubic feet
  • Suspension front: Double track control arm with M-specific elastokinematics, small, negative steering roll radius, anti-dive
  • Suspension rear: Integral-V multi-arm axle with M-specific elastokinematics, spatial suspension with anti-squat and anti-dive
  • The BMW M5 will also come with power regenerative braking, one of the first non-hybrid/electric cars to do so, as well as auto start/stop, and reduced rolling resistant tires

That’s enough of the number games, now it’s time for the real comparison: the pictures.

The rest of the pictures of the E63 AMG are of the 2010-11 model. Mercedes-Benz has only added a few 2012 MY pictures to their press site, not enough to compare the design to the M5’s. Don’t worry, the 2010-11 are identical inside and out, though.

So which car would you rather spend your money on, the E63 AMG or the M5? As much of a Bimmer guy I am, I would never complain having the AMG, even though I’d rather have the M5 for its manual transmission.

Why don’t you head on over to the RawAutos Forum where we can finish this discussion/debate, huh?