My first '90NA, I drove it everyday for 7 years--112k miles. I had no problems. The car looked and drove like new when I sold it. I missed it so much, I bought another '90, but a TT. My brother still has his '87Turbo Z. He's the original owner and it has 247K miles. It still has the original turbo and has never had to do any major engine work. He had to put a transmission in it at 170K miles. The car still looks and runs great. Several members on this board have seen it and can verify to its condition. If you do the scheduled maintenance, you will have no problems.