I thought driving in P400 would save gas but based on research in this forum and performing my own, learned it does not. I went to San Francisco from Los Angeles on vacation and did several 60-mile stretches in P400 and P500 averaging 70mph; no difference. Now it's P500 all the time; what a rush.
1 - 1 of 24 Posts
1 - 1 of 24 Posts
- This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
BMW M5 Forum and M6 Forums
M5Board is the best forum community for information on the BMW M5 E60 (V-10), E39 (V-8), E34 (straight 6), E28, F90 and F10. Discuss performance, specs, reviews and more!
Full Forum Listing
Recommended Communities
Join now to ask and comment!
