the best cars in the lot

[azz]

a. The best cars in the lot are John's. The worst ones are John's too.
b. The best cars in the lot are John's cars. The worst ones are John's cars too.

I think (a) works and (b) does not. Am I correct?

I think (b) means the same as:

c. John's cars are the best cars in the lot. They are the worst cars too.

And that doesn't make much sense, unless one is saying in a jocular fashion that all the cars are John's.

Many thanks.

[Erik_Kowal]

I take a), b) and c) to be mildly humorous statements saying that both the best and the worst cars in the lot are John's. They all seem unexceptionable.