Perhaps someone on this forum can explain the mystique behind the ever increasing size of wheels supplied as standard equipment on new cars. Manufacturers seem to slap the biggest possible wheels on cars and then offer( for extra $$ of course) an even bigger size as an option. 32 years ago my SL came with 14" wheels and provides a great ride. A few years back I had a 1964 Olds 98 convertible which was a truly enormous car, and it had 14" wheels too. Back in the 50's through 80's it seemed that just about all cars other than puddle jumpers had 14" or 15" wheels and this included limos and muscle cars. Today we are looking at ever increasing wheel sizes which unfortunately results in the very significant extra cost of replacement tires. My daily driver has 17" wheels and I'm really not sure why it needs them. Just what exactly is the presumed benefit?