First off let me say that this is just MY OPINION. I'm not trying to start an argument just a discussion.
In their basic form, these cars (any and all models) are LOUD AND HOT!
Lets talk about the heat first. There are two forms of heat to deal with. One is radient heat and the other is hot air.
In the footbox area of my coupe I used Dynaliner and Dynamat covered by carpet to reduce the radient heat coming off the engine and sidepipes. Lizardskin heat and sound deadening covered by carpet was used on the rest of the panels on the interior. Both products do a very good job of reducing radient heat. On 95+ days the interior of the footbox panels are only slightly warm to the touch. The big back window in the coupe heats up the car the most. I'm looking into getting that coated. What I found to be a bigger problem was hot air. Any little hole, open seam, thru hole, gap of any kind would allow the hot air of the engine bay to blow into the cabin like a blast furnace.The area around the door hinges was a big deal. Once all the holes were closed off the car is very comfortable heat wise.
The sound deadening efforts are good for eliminating the rattles, vibrations and squeeking making the car feel much more solid. They don't really do much as far as the noise from the sidepipes or the wind in the roadsters is concerned. Even with aftermarket sidepipes you still need ear protection.
Again, these are my opinions and my opinions alone. Just wanted to open this up to discussion for new builders. A lot of money can be spent on trying to eliminate something that may not be possible or necessary.
