Cal Thomas is making no claim to be presenting evidence for evolution. He is making the point that the evolutionist lobby is engaging in misleading propaganda when they claim that real scientists all believe in evolution.
If Cal Thomas did assert that creationist point of view was correct because "Famous and intelligent" people believed it, your analogy still would be wrong. It would be like arguing that the Denver Broncos suck as a football team because thousands of famous and intelligent local fans think so. Forget the goofy BMW thing.
Still thousands of famous and intelligent fans can be wrong. All Cal Thomas is arguing for is letting the detractors of evolution have the freedom to express the evidence for their position.
You could benefit by a course in logic. This is also the point where evolutionary theory breaks down as noted by law professor Philip Johnson in "Darwin on Trial" etc.