I doubt that Mercedes would be able to profit from a lawsuit against Lexus, but I have noticed some striking similarities in design. I think the Lexus GS series car looks like a battered and cracked out E-class, and the LS looks very similar to the W140 S-class. I just looked at the Lexus website and much to my dismay the new SC series looks like an SLK.
It's easy to be annoyed by the styling similarities, but it's more rewarding to take the cheap rip-offs as a compliment to the design of our cars. Why rip-off anybody but the best?
1976 300D (W115) - 330K and still going (sort of)
1991 300D 2.5 Turbo - Sold at 221K
1983 280SEL - Sold at 206K
1981 300SD - Sold at 232K