Porsche 911 'Design911.com'
There's a stretch of the North Circular, clockwise, just after Henley's Corner, where the intersecting A1 reaches into Central London, and ends about two miles later as you slow to a crawl, indicating right to join the road dropping into Muswell Hill. This stretch has everything: camber, inclines, convex segments, dips that vary between the lanes, traffic lights that have to be timed to beat, and more often than not, another guy on the inside lane who's up for the challenge....
