I put almost 40k miles on my Z since I purchased it 5 years ago. Just recently I replaced the auto. trans. @ 112k miles. But I expected that. After a few upgrades I got over 110 hp more than the car was rated at the factory. I can't expect the car trans to hold up to that much power after 14 years. Have not needed to replace anything other than that... and brakes!
† Edmunds.com received the highest numerical score in the proprietary J.D. Power 2014 Third-Party Automotive Website Evaluation Study℠. Results based on responses from 3,381 responses, measuring 14 companies and measures third-party automotive website usefulness among new and used vehicle shoppers. Proprietary study results are based on experiences and perceptions of owners surveyed from January 2014. Your experiences may vary. Visit jdpower.com.