You are correct, sir. "Driving with the Top Down" is from 6:13 to 7:03. "Fireman", also from the Iron Man OST, plays from 05:06 to 6:12. The track starts after fourteen seconds of "Fireman" then ends around the 1:21 mark before "Driving with the Top Down" plays.
20:58 - 21:09 "The Trek" by Mike Oldfield from The Killing Fields score
24:37 - 25:17 "Harborview Hospital (instrumental) by the Mark Lanegan Band
The forum here has the correct song. But watching this episode on Netflix, I'm trying to find the "other" song played at this part.
i've checked other forums, and the BBC's site. I've tried SoundHound and Shazam.. no luck.
The song comes right after Hammond says "....If I hadn't hit the big wall of ice...."
I'll try and upload the short clip I have with the song in it.