if you made the Mx5 the second car

Unfortunately I can't make the MX5 the second car, I'll be doing more miles in the MX5 than the Tuscan, which makes the MX5 my main car :-(

I guess it's all down to whether you wheelspin in every gear, which, while undoubtedly fun, ain't going to help the tyres. I only know 2 Tuscan owners & they get more than 6,000 out of their tyres, although admittedly they have both needed new wheels for their cars after some exuberant kerbing at track-days.

There are a whole bunch of people with Tuscans who claim to have driven their Tuscans sensibly but are still going through tyres every 6,000 miles, then there are another bunch who admit they drive like nutters and are getting more than 6,000 miles. It seems like the most likely explanation for this is that the factory got the alignment settings wrong initially. Some people have reported improved tyre wear after using a different alignment setup that the factory has now provided.

There are also plenty of people with Tuscans with square wheels who say they have never been anywhere near a kerb and oddly enough the wheels on the latest Tuscans have started getting more chunky. The factory are still saying there is nothing wrong with the original wheels though...