I use E-Z COOL insulation under my floor mats to keep the heat down. I hadn't put any in the 24 yet and at the end of a days drive it was pretty warm. I installed some and was out all day Thursday, what a difference. Cut it the shape of the floor mat and just cut slits for the pedals and parking brake. It's available from Concours Parts, (800)7220009. It can also be found at larger flea markets.I also cover the bottom of the floor boards with aluminum foil.