I'd still buy a used one one if I could, but would build up a stocker due to the price of upgrades:
Best time posted: KLEEMANN C55K S7 531 hp / 540 torque 11.997 @ 117
VEHICLE TYPE: front-engine, rear-wheel-drive, 5-passenger, 4-door sedan
PRICE AS TESTED: $99,003 (base price*: $94,398)
ENGINE TYPE: supercharged and intercooled SOHC 24-valve V-8, aluminum block and heads, port fuel injection
Displacement: 332 cu in, 5439cc
Power (mfr's claim): 570 bhp @ 6500 rpm
Torque (mfr's claim): 580 lb-ft @ 4200 rpm
TRANSMISSION: 5-speed automatic with manumatic shifting
DIMENSIONS:
Wheelbase: 106.9 in
Length: 181.5 in
Width: 68.0 in
Height: 55.6 in
Curb weight: 3830 lb
C/D TEST RESULTS:
Zero to 60 mph: 3.8 sec
Zero to 100 mph: 8.9 sec
Zero to 130 mph: 15.2 sec
Street start, 5-60 mph: 3.9 sec
Standing 1/4-mile: 12.2 sec @ 117 mph
Top speed (redline limited): 187 mph
Braking, 70-0 mph: 160 ft
Roadholding, 300-ft-dia skidpad: 0.90 g