Cd Year Model  
0.25 2001 Honda Insight  
0.25 2000 Lexus LS430 --
0.26 1989 Vauxhall Calibra  
0.26 2000 Mercedes C180 --
0.27 1996 Mercedes E230 --
0.27 1997 VW Passat --
0.27 1997 Lexus LS400 --
0.27 1998 BMW 318i --
0.27 2000 Mercedes C-class C200 up to C320
0.30 1988> Audi 100 Much trumpeted First Modern Aerodynamic saloon , even known as the 100 CD (sic) 
0.32 1938 Tatra T77 The Worlds first Truly Aerodynamic car. 40 years ahead of its time