I have a 1987 528e with 240,000 miles on her and she can do 0-60 in like 8 secs no chip no nothing yet i dont think people beleave me but this lil beast really runs well i just think it is luck though. I bought my car from a guy who wanted a truck well he got a truck and two days later he sold it and bought a 88 super eta 528e cause he likes them so much and he told me that his 88 had hardly any power compared to mine and his has over twice as less miles as mine i just think it is the luck of the straw...