help buying a used clk

Hi, I need help I have found what appear to be two bargains, but can't make a decision. The first is a 1997 CLK 230K. It has 80k miles, 8 months MOT, 4 owners. The second is a 2000 CLK 430E. It has 100k miles, 3 months MOT, 2 owners. Both cars are £1500. It seems crazy that I am...