The first one, definitely. I think that competing against the clock was a bad move in Lotus 2. The computer-generated tracks in Lotus 3 obviously lacked human design.
I think the AI (or lack thereof) in the Lotus series is most disturbing. The fact that the computer drivers can't lap each other causes them to slow down considerably on most races.
I liked many design ideas in Jaguar XJ-220 but not the look and feel.