MotorTrend compares the 2014 Audi RS5 to the 2014 W204 Mercedes-Benz C63 AMG 507 edition

[Sticky]

Here are two German luxury sport coupes that are very familiar to German car enthusiasts as they share the majority of components with their well known sedan siblings. The RS5 is the fresher looking of the two coupes and technically the newest although it is using the naturally aspirated 4.2 liter V8 that we are all familiar with and is desperately in need of being replaced. Yes, Audi tweaked the motor a little bit more coaxing 450 horsepower horsepower out of the V8 which is 30 more than the B7 RS4 sold in the United States.

Audi also gives the RS5 their S-Tronic dual clutch gearbox which combined with the horsepower bump gives a slight performance boost over the B7 RS4. The elapsed time is a fairly impressive 12.3 seconds thanks to the grip and gearbox but the trap speed is only 112.2 miles per hour. Basically, it's not a match for the C63's brute force thanks to its 6.2 liter M156 motor with 507 horsepower routed to the rear wheels. That is a 56 horsepower bump on the standard C63 AMG and essentially the 507 edition offers the P31 Performance Package as standard. With a 12.2 @ 117.4 1/4 mile sprint it shows the raw power provided by the $9750 507 option is clearly ahead of the RS5.

Raw power isn't everything though, right? Even though the RS5 is outmatched in grunt it manages to put up a heck of a fight around the track thanks in part to its technology. This despite being the heavier car and having a very nose heavy 58/42 front to rear weight distribution. It just handles better than the C63 and offers greater grip. The RS5 manages .99g on the skidpad to the C63's .91g. Around the roadcourse it is the RS5 that comes out on top with 1:42.97 laptime to the C63's 1:43.45. Finesse, grip, and technology beat brute force this time.

These are two excellent cars with different approaches. The RS5 is more refined and composed. It is the better handling car of the two although heavier (~70 pounds more) and prone to understeer. The C63 is the more powerful car and able to kick its tail out thanks to the torque practically at will. The Benz is said to be more engaging of the two and ultimately likely more fun. Two excellent cars that go about their business in very different ways.

	2014 Audi RS 5	2014 Mercedes-Benz C63 AMG 507 Edition
POWERTRAIN
DRIVETRAIN LAYOUT	Front engine, AWD	Front engine, RWD
ENGINE TYPE	90-deg V-8, aluminum block/heads	90-deg V-8, aluminum block/heads
VALVETRAIN	DOHC, 4 valves/cyl	DOHC, 4 valves/cyl
DISPLACEMENT	254.0 cu in/4163 cc	378.8 cu in/6208 cc
COMPRESSION RATIO	12.5:1	11.3:1
POWER (SAE NET)	450 hp @ 8250 rpm	507 hp @ 6800 rpm
TORQUE (SAE NET)	317 lb-ft @ 4000 rpm	450 lb-ft @ 5200 rpm
REDLINE	8250 rpm	7200 rpm
WEIGHT TO POWER	8.9 lb/hp	7.8 lb/hp
TRANSMISSION	7-speed twin-cl auto	7-speed automatic
AXLE/FINAL-DRIVE RATIO	3.88:1/2.01:1	2.82:1/2.06:1
SUSPENSION, FRONT; REAR	Multilink, coil springs, anti-roll bar; multilink, coil springs, anti-roll bar	Struts, coil springs, anti-roll bar; multilink, coil springs, anti-roll bar
STEERING RATIO	15.9:1	13.6:1
TURNS LOCK-TO-LOCK	2.8	2.6
BRAKES, F;R	14.4-in vented, drilled disc; 12.8-in vented, drilled disc, ABS	14.2-in vented, drilled disc; 13.0-in vented, drilled disc, ABS
WHEELS	9.0 x 20-in, cast aluminum	8.0 x 19-in; 9.0 x 19-in, forged aluminum
TIRES	275/30T20 97Y Pirelli P Zero	235/35R19 91Y; 255/30R19 91Y Continental ContiSportContact 5P
DIMENSIONS
WHEELBASE	108.3 in	108.9 in
TRACK, F/R	62.4/62.3 in	65.3/64.3 in
LENGTH x WIDTH x HEIGHT	183.0 x 73.2 x 53.8 in	185.3 x 70.7 x 54.8 in
TURNING CIRCLE	37.4 ft	36.4 ft
CURB WEIGHT	4027 lb	3952 lb
WEIGHT DIST, F/R	58/42%	53/47%
SEATING CAPACITY	4	4
HEADROOM, F/R	37.5/36.0 in	37.0/35.5 in
LEGROOM, F/R	41.3/31.7 in	42.0/33.0 in
SHOULDER ROOM, F/R	54.3/52.8 in	54.0/50.3 in
CARGO VOLUME	12.4 cu ft	11.7 cu ft
TEST DATA
ACCELERATION TO MPH
0-30	1.3 sec	1.6 sec
0-40	2.1	2.3
0-50	2.9	3.0
0-60	3.9	3.8
0-70	5.0	5.0
0-80	6.4	6.1
0-90	7.9	7.4
0-100	9.7	9.0
PASSING, 45-65 MPH	2.0	1.8
QUARTER MILE	12.3 sec @ 112.2 mph	12.2 sec @ 117.4 mph
BRAKING, 60-0 MPH	104 ft	103 ft
LATERAL ACCELERATION	0.99 g (avg)	0.91 g (avg)
MT FIGURE EIGHT	24.6 sec @ 0.84 g (avg)	25.2 sec @ 0.78 g (avg)
2.2-MI ROAD COURSE LAP	1:42.97 sec	1:43.45 sec
TOP-GEAR REVS @ 60 MPH	2100 rpm	1700 rpm
CONSUMER INFO
BASE PRICE	$70,495	$75,125
PRICE AS TESTED	$78,320	$90,810
STABILITY/TRACTION CONTROL	Yes/yes	Yes/yes
AIRBAGS	Dual front, front side, f/r curtain, front knee	Dual front, front side,f/r curtain, front knee
BASIC WARRANTY	4 yrs/50,000 mi	4 yrs/50,000 mi
POWERTRAIN WARRANTY	4 yrs/50,000 mi	4 yrs/50,000 mi
ROADSIDE ASSISTANCE	4 yrs/unlimited	Unlimited
FUEL CAPACITY	16.1 gal	17.4 gal
EPA CITY/HWY/COMB ECON	16/23 mpg	13/19 mpg
ENERGY CONS, CITY/HWY	211/147 kW-hrs/100 mi	259/177 kW-hrs/100 mi
CO2 EMISSIONS	1.05 lb/mi	1.28 lb/mi
RECOMMENDED FUEL	Unleaded premium	Unleaded premium

[TT C6]

The AMG has the engine, the RS5 has everything else.
If the next C63 gets AWD and DCT, then I will buy one.
If not, Audi wins again.

[BlackJetE90OC]

If the next C63 gets AWD and DCT, then I will buy one.

How many times are you going to say this?

To be honest with you, no one gives a flying sh*t what your next car is.

[Sticky]

How many times are you going to say this?

To honest with you, no one gives a flying sh*t what your next car is.

I'm seriously LOL'ing in all honesty. HAhahah man.

Sometimes I forget how awesome this place can be.

[TT C6]

How many times are you going to say this?

To be honest with you, no one gives a flying sh*t what your next car is.

I'll be saying it until the official reveal in September.
So, grab some popcorn and enjoy the next 7 months.

[ezec63]

Sucks that benz handicapped the car so much to not step on its big brothers toes(e63, sl, etc) You can clearly see if it had more grip that the lap time would go down significantly .91 skidpad is just OK. The car needs a LSD and wider stickier tires. An open diff on a 507 hp 6.2 L car is a joke ! And the 235/255 tire setup is clearly holding it back. My car is heavily modified and to this day the LSD was my favorite mod for enjoyment of the car the way i drive it(TC OFF all day) Either way sad to know this is going to be the last comparo of the badass german N/A trio ;-/ too bad the m3 didnt show up to show what RWD, LSD, and wider tires can do to track times

[Sticky]

The car needs a LSD and wider stickier tires. An open diff on a 507 hp 6.2 L car is a joke

Yes it is but isn't an LSD an option?

too bad the m3 didnt show up to show what RWD, LSD, and wider tires can do to track times

They should have thrown an M3 in there as this is essentially a last gen battle but they already seem to be positioning the RS5 against the M4 which is a mistake IMO. The M4 is going to walk all over it.

[Adrenacide]

That RS5 in black is such a gorgeous car! With BMW (M3, M4) and Merc (C63) going for forced induction engines, I can't wait to see what Audi puts in the RS5, it's got to be something special, if you look at what they've done with the RS3 and RS7...

[Sticky]

I can't wait to see what Audi puts in the RS5, it's got to be something special, if you look at what they've done with the RS3 and RS7...

V6 twin turbo.

[Adrenacide]

V6 twin turbo.

Yeah, I read that, but I want to know performance figures!

[Sticky]

Yeah, I read that, but I want to know performance figures!

Just look at the Macan or Panamera....

[Bozo954]

How many times are you going to say this?

To be honest with you, no one gives a flying sh*t what your next car is.

I'm seriously LOL'ing in all honesty. HAhahah man.

Sometimes I forget how awesome this place can be.

HEY!! You guys cut the crap...........leave 'im alone!! Dammit.

(You shut the $&#* up, Bozo. You started this @^*%. Bootyhole.)

He gone!

[Sticky]

That RS5 in black is such a gorgeous car! With BMW (M3, M4) and Merc (C63) going for forced induction engines, I can't wait to see what Audi puts in the RS5, it's got to be something special, if you look at what they've done with the RS3 and RS7...

Looks like it is going to be a V8 twin turbo @Adrenacide

[Adrenacide]

Looks like it is going to be a V8 twin turbo @Adrenacide

Ooooo, wonder if it'll be a detuned version of what's in the RS6/ RS7 then... Exciting

[Sticky]

Ooooo, wonder if it'll be a detuned version of what's in the RS6/ RS7 then... Exciting

We will have to wait and see but that would be a dream scenario.