I dunno philos.....our 4runner has navy blue leather and it's not hot during the summer.....plus, plan to tint my windows before the heat really sets in.......The IPOR grey seems almost slivery....and it's too light for my taste and habits!
I have black Volvo seats in mine with grey interior. I like it. I already had a black leather steering wheel wrap and am thinking of recovering the Tuffy console bad in black. I like the look. I'll dig up some pics.