[ACHiPo]

I have heated seats. They don't do a whole lot, but then I really don't need them. After about 10 minutes the cabin is quite warm.

I put in the foot box vent fans and wish I wouldn't have. They are noisy, but without them there's not much air movement at all. Tend to think it's better without. Plus on hot days, the vents pick up hot air off the pavement and route it across the headers. Kinda like a convection oven.

I doubled up on insulation around the cabin and am very glad I did (I have under car exhaust). The only really hot air (besides the footwell vents) is air that leaks between the fender and the foot box--again convection oven courtesy of the headers. Need to fill the gap with non-expanding foam.