Back in the sixties I tried to follow the Trans-Am Series. SCCA started the series in 1966 with two classes: under 2 liter, and over 2 liter. The over two liter was limited to 5 liters. So all kinds of cars were on the track at the same time. Pretty groovy.
@Shaggy actually I don't have nearly as much money as I used to, but I get discounts for being in the "wine industry". Last night I drank the whole bottle of 2009 Laird Family Estate "Red Hen Vineyard" Chardonnay that I had on hand. Very tasty at $30 per bottle, but I got mine completely free for working at Laird last fall during the harvest (I don't work there anymore, but they still give me big discounts).