We bought our MX5 in Phoenix and promptly put on 4000 miles touring National Parks in AZ, Utah, Calif. and OR. Then after a winter break we did another 8000 through Calif. NV., Utah, CO., S. D., WY, Montana, Alberta, B.C., Yukon and finally home to Alaska. Ninety five percent with the top down (made ultra easy with the slick one arm set-up) and 85 % on back mountain roads. The handling is absolutely unbelievable! Never wanted for power. Enough trunk space for two months worth of personal gear, sleeping bags and tent. I've recently driven an 04 Jag, an 02 Z3 and an 03 SLK; I would not even consider a straight-up trade.
Handling and silky motor.
Better cup holder position; period...nothing else!