New for 1998, the Mercedes CLK was styled like the larger E-Class, but used C-Class underpinnings. The smooth-revving 3.2-liter V6 was good for 215 horsepower. An optional 4.3-liter V8 was added in mid '98. Both engines are matched to a five-speed automatic. Informal testing indicates that the CLK handles well and is fast, frugal, and comfortable, though not as rewarding to drive as a BMW 3 Series coupe. The two rear seats are reasonably hospitable. A convertible model, new for 1999, features pop-up safety bars that deploy when a rollover is detected. The high-performance CLK55 AMG debuted in 2001.