Smaller than the larger and swanker CL- and SL-Class models and larger and costlier than the two-seat SLK-Class, the since-discontinued midsize Mercdes-Benz CLK-Class can be found in both sporty luxury coupe and convertible versions.
So we see boring names like CTS, EXT, LS, XLR and 3.2TL. It's an effort to copy Mercedes with its C and CLK and SLK. Letters are also big for super high-powered jobs, like M (on BMWs) or V (on the Cadillac CTS) or R (on Volvo).