The C300 gets its motivation from a 3.0-liter V-6, and is available only as a sedan in 4MATIC all-wheel drive, again with a seven-speed automatic. At 228 horsepower and 221 pound-feet of torque, it's also sporty enough, though those after more potent acceleration will want to opt for the C350 or C63 AMG Coupe.
The C350 gets its go from a 3.5-liter V-6 engine rated at 302 horsepower and 273 pound-feet of torque. At 5.9-seconds to 60 mph, it's quick, but not shockingly so. Like its stablemates, the rear-drive C350 is available only with a seven-speed automatic transmission.
Stepping up to the AMG sub-brand, the C63 Coupe gets to 60 mph in a very brisk 4.4 seconds thanks to a 451-horsepowe, 443-pound-foot 6.2-liter V-8 engine. It's not all about straight-line performance, however, with a highly tuned suspension that raises the C63's performance to something on par with the class benchmark, the BMW M3.
That's not to say the standard C Class coupes and sedans aren't fun-to-drive, too. The C250, in particular, punches above its weight in this regard thanks to a lighter, more nimble feeling. The C350 is better regarded as a quick touring sedan, or grand tourer in Coupe form.
Despite their performance, only the C63 AMG gives up comfort in its quest to tame the twistier bits of tarmac.