As said above I have heard as well that thier is supposed to be a C55 4 door coming out soon.
Road and track mag tested the C32AMG
Time to speed Seconds
0–30 mph.......1.9
0–40 mph.......2.7
0–50 mph.......3.9
0–60 mph.......5.1
0–70 mph.......6.5
0–80 mph.......8.3
0–90 mph.......10.2
0–100 mph.......12.2
Time to distance
0–100 ft.......2.9
0–500 ft.......7.4
0–900 ft.......10.7
0—1320 ft (1⁄4 mile).......13.6 @ 105.4 mph
Minimum stopping distance
From 60 mph.......118 ft
From 80 mph.......211 ft
Control.......excellent
Brake feel.......very good
Overall brake rating.......excellent
Our driving.......est 18.0 mpg
EPA city/highway.......17/22 mpg
Cruise range.......315 miles
Lateral acceleration
(200-ft skidpad).......0.86g
Balance .............moderate understeer
Speed through
700-ft slalom.......64.0 mph
Balance.......mild understeer
and the M3 US version only 333bhp (yours has 343bhp)
Time to speed Seconds
0–30 mph.......1.7
0–40 mph.......2.8
0–50 mph.......3.7
0–60 mph.......4.7
0–70 mph.......6.2
0–80 mph.......7.8
0–90 mph.......9.4
0–100 mph.......11.6
Time to distance
0–100 ft.......2.8
0–500 ft.......7.3
0–900 ft.......10.4
0—1320 ft (1⁄4 mile).......13.3 @ 106.8 mph
Minimum stopping distance
From 60 mph.......112 ft
From 80 mph.......200 ft
Control.......excellent
Brake feel.......excellent
Overall brake rating.......excellent
Our driving.......na
EPA city/highway.......na
Cruise range.......na
Fuel capacity.......16.6 gal.
Lateral acceleration
(200-m skidpad).......0.91g
Balance .............mild understeer1
Speed through
700-ft slalom.......na
Balance.......na
The M3 is a fraction quicker , has more grip 0.91g to 0.86g.
I had an E46 M3SMG2 Cab, great car, no problems, great on the track and generally people will say it's a better drivers car (I see you've got the 19"s, mine had a really hard ride on them) I have never driven a C32amg, but I am fairly sure it would be a much better cruiser and of course much nicer to be a passenger in all the mags seem to say this, autocar liked thier C32.
Clk500 actually did surprisingly well in road and tracks test (with sports suspension)
Time to speed Seconds
0–30 mph.......2.3
0–40 mph.......3.3
0–50 mph.......4.5
0–60 mph.......5.8
0–70 mph.......7.5
0–80 mph.......9.4
0–90 mph.......11.5
0–100 mph.......13.9
Time to distance
0–100 ft.......3.2
0–500 ft.......7.9
0–900 ft.......11.3
0—1320 ft (1⁄4 mile).......14.3 @ 101.6 mph
Minimum stopping distance
From 60 mph.......131 ft
From 80 mph.......228 ft
Control.......very good
Brake feel.......very good
Overall brake rating.......very good
Subjective ratings consist of excellent, very good, good,
average, poor; na means information is not available.
Our driving.......17.0 mpg
EPA city/highway.......16/23 mpg
Cruise range.......262 miles
Fuel capacity.......16.4 gal.
Lateral acceleration
(200-ft skidpad).......0.85g
Balance .............moderate understeer
Speed through
700-ft slalom.......66.5 mph
Balance.......mild understeer
1.7 secs slower to 100 than the C32 (still quick though), but got grip of 0.85g, braking was worse.
M3 Pure fun, fastest, great noise, Hoooligan, drive straight on to the track, value for money £38k, poor auto function on SMG, rough ride pain on long trips and for passengers.
C32AMG Practical fun, better ride, long journey comfort, space, C32 4 doors is just so good for lifts or even carrying things, auto box not good for track days, fairly expensive £44k plus goodies.
CLK500 Pose value, good for long journeys CLK500, not really a track day tool, bit slower, expensive to buy and equip £43k plus goodies.
If you fancy going for even more comfort £42k you could get an E500, with active suspension as standard (amazing system

), limo luxury, very civilised cruiser and still able to be quite sporty.
All great cars have fun choosing
