Top Gear - Season 21 Episode 4
William Woollard looks at ways to mitigate traffic congestion, while Jeremy Clarkson examines some of the competing solutions to London’s problems and comes to a novel conclusion. Off-road motorcycle rallies have given rise to a new breed of commercial bikes. Chris Goffey assesses their leisure use off the road, and their practicality in towns. The AC Cobra still evokes a special excitement among enthusiasts. Beki Adam reviews this marriage of a big American V8 engine and a sophisticated British sporting chassis. Tiff Needell tests two Grand Prix Karts — 250cc machines capable of 150 mph.
First Air Date : 1978-07-13
Last Air date : 2009-08-02
Runtime : 57 minutes
Genre : Documentary
Cast : Jeremy Clarkson, Richard Hammond, James May, Ben Collins
Crew : Andy Wilman (Producer), Lloyd Washbrook (Producer)
Quality : 
Subtitles :
- Season 21 : Episode 11989-03-21
- Season 21 : Episode 21989-03-28
- Season 21 : Episode 31989-04-04
- Season 21 : Episode 41989-04-11
- Season 21 : Episode 51989-04-18
- Season 21 : Episode 61989-04-25
- Season 21 : Episode 71989-05-02
- Season 21 : Episode 81989-05-09
