[b-man]

215/60-15 = 25.16" tall.

215/75-14 = 26.7" tall.

Huge difference in effective gearing and speedo readings.

Cosmetically the 215/60-15s are too short to look right, the smallest 60-series 15" tire I would consider would be 235-60-15s at 26.1" tall. Good tire size for the front (rear too if you want all 4 the same so you can rotate them), about as big as you can reasonably go without having to find the 'perfect' wheel'. Will easily fit on a stock 15X7" Rally II wheel that has about 4-3/8" of backspacing.

The 255/60-15 (27.04" tall) would a nice tire size for the rear and your speedo readings would be very close with little to no error. Will also easily fit on a stock 15X7" Rally II wheel.

Both sizes will fit on an 8" wide wheel nicely as well, but you'll need 5" to perhaps 5-1/4" of backspacing for a good fit.

If you will be running the 7" wheel with zero offset (4" backspace) you will likely be limited to 235/60s on all 4 corners.