Just bought new 121K mile '88 740 GLE to replace my retiring '89 740 GL w/276K miles. I notice that the '88 has 14" tires, not the 15" as on my "89. Don't know why Volvo would change tire size on what is essentially the same car. Both vehicles are regular automatic tranny 4 cylinders.

Questions: If I choose to swap tires before disposing of the old '89, will the 15" '89 wheels mount on the '88 hubs? If so, which size is preferable, 14' or 15'? Won't the different tire size make a difference in MPG and speedometer/odometer readings? Will the ride/handling characteristics vary?

The rubber is good on all tires, and I do have a couple of spare 15' tires already mounted in my garage. My cheapskate side considers this a plus.

FYI, the "new" GLE cost me $1500, and is in great shape. The venerable '89 was my wife's purchase w/62K several years ago for $3,000, and I figure another $4,000 in repairs and maintenance over 214,000 miles of use. A little frustrating at times, but we got ours money's worth. Hope the new one is as good.

This board is a great resource. Look forward to your advice. Thanks.