Trying to plan ahead... I've never really deviated from stock size tires on my vehicles, mostly to keep the speedo and odo in order; but the lack of suitable replacement tires for the c (at this time) and the need to order 16" or 15" wheels are making me look at all options. The 15"'s turning circle is awesome but the 16"''s 195/50's must handle great. (can't find a c4 w/ 16's to test drive yet...) So.... It looks like a 185/60R15 like the LRR Michelin Defender might be a good choice if you needed to replace the stock 175/65R15...? It has a odometer difference of -0.9% - the odometer would read 100091 miles for every 10000 traveled and the speedo reads 61mph while traveling at 60mph. I recall a thread here about the c's speedo discrepancy but I can't find it (I think the speedometer readout is 1-2mph over real?). Is this too much difference or is it really negligible and I should forget about it? The 16"'s have a few replacement options but none in LRR at this time. I'm driving ~80% hwy (70-75mph) and 20% city; 1500 miles/month. Comments? Have I overlooked something obvious/important? Thanks.