Looks like the ID for this track has been requested several times over the past few years... It's post-Willis Jeep, with Jeremy describing the Humvee's role in the 1991 Iraq war. Anyone know?
For a current video reference that still works:
http://www.streetfire.net/video/top-gear-season-2-ep-7_part-1_547784.htm , go to part 5, 1:04 through 1:35. (The channel logo on the recording shows "BBC PRIME"...)
The song is Kris Stone - Slo Burn
https://www.youtube.com/watch?v=6QaHSZLel40
Here is a list I found on a Russian top gear fan site
00: 00-00: 25: Top Gear - Main Theme
00: 10-02: 35: The Sabres Of Paradise - Clock Factory *
02: 45-03: 25: Raffaella Cooper - Jungle Mass
03: 25-03: 35: Deakin Scott - Hell-Bent
03: 35-04: 05: Urchin - Shitewrecked *
04: 15-04: 30: Jason Creasey - Dun N Dusted
05: 20-05: 35: The Sabres Of Paradise - Clock Factory *
05: Overhead Line # 35-05: 45: Jason Creasey - Dun N Dusted
05: 45-07: 00: Deakin Scott - Hell-Bent
07: 15-08: 00: Unknown-1
08: 00-08: 30: Urchin - Shitewrecked
11: 20-11: 45: Joel Bogen - Cool Fool
23: 10-23: 40: Kris Stone - Morphine Queen
23: 45-24: 25: Lawrence Rudd / Daniel Mark Farrant / Tristian Keyte - Freak Show
24: 40-25: 40: Enigma - Why
27: 00-27: 40: Unknown-2
40: 50-41: 00: Effects - Moods - Military
41: 00-41: 30: Kris Stone - Slo Burn
41: 50-42: 10: Joel Harold Bogen - Busted
42: 10-43: 05: Richard Wagner - Ride Of The Valkyries *
43: 10-44: 15: Leo Delibes - Coppelia - Music Of The Doll And Waltz
44: 15-44: 35: Johann Pachelbel - Canon In D *
44: 40-45: 10: Antonin Dvorak - Symphony ?9 In E Minor, Op. 95 - From The New World: 1st Movement (Adagio Allegro Molto.) *
45: 10-46: 00: Giuseppe Verdi - Grand March *
46: 25-47: 25: Antonin Dvorak - Symphony ?9 In E Minor, Op. 95 - From The New World: 2nd Movement (Largo) *
48: 10-48: 25: Leo Delibes - Coppelia - Music Of The Doll And Waltz
49: 45-49: 50: Khris Stone - Bachin 'The Bish
51: 15-51: 35: Unknown-3
52: 30-53: 00: Top Gear - Main Theme