Dan Prosser and Andrew Frankel mark the 20th anniversary of 'new' Top Gear by assessing its legacy and discussing how it became a global phenomenon. Just what did Jeremy Clarkson, James May and Richard Hammond get so right? The best writers, the finest stories and no ads, all on The Intercooler’s beautiful website. Visit www.the-intercooler.com. Music by Stephen Harrington (ph.zero.entertainment@gmail.com).