I've used the Lowe's Peel and Seal in an old pickup I had. It had some adheasion problems and did smell a bit, especially when hot out. The bubble wrap insulation does work well for heat. Dennis H has it in his car, and it made a huge difference. If you're on a budget, this is the way to go.
The best quality and performance is Dynamat Extreme and the Insulator material from Aircraft Spruce. Remember Dynamat Extreme is about half off the list price with free shipping available from Amazon dotcom.
The "Insulator" mat-type material from Aircraft Spruce is about 4 times better at insulating for heat AND drastically better at insulating sound. It's cheap too. There's nothing out there that even compares right now.
When the two materials are combined in appropriate places in the car, the results are amazing!
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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