A Porsche Cayenne helped set a 238kph cycle record
To travel very quickly on Earth, you need to push a lot of air out of your way. This takes a lot of power. It's why the Bugatti Chiron needs 16 cylinders and four turbos, and why jet airliners have engines the size of buses.If you want to go quickly on a bicycle, you'd ideally need a big object to follow that's pushing all the air out of the way for you, so you can concentrate on the pedaling. Say, a two-tonne Porsche Cayenne towing a giant windbreak?Yep, that's the tactic successfully used by 44-year old British cyclist Neil Campbell, who's ridden his custom Moss Cycles bike to 238kph on RAF Elvington's 3.2km runway, behind a 542bhp Cayenne Turbo. The feat beat his own record of 216kph, set back in June of this year.The bicycle needed is no ordinary commuter - it's a custom job with a long, stable wheelbase, special gearing and tyres rated for autobahn speeds. It's also outfitted with a tow-rope and buffer system to get Neil up to 168kph, and stop him clattering into the rear of the Cayenne's windbreak.The Porsche, by contrast, is pretty much off-the-shelf. It runs a 4.0-litre bi-turbo V8 that usually hauls it from 0-100kph in 4.1 seconds and on to a 283kph top speed. It's less quick when effectively towing a rigid parachute, but driven by famed British drag racer Andy Frost, it was quick enough to reach 240kph and brake before the end of the runway, helping break a record Porsche's got some history with.Neil Campbell said\: We've got so little space that it was essential that we got up to speed as quickly as possible. The acceleration of the Cayenne was incredible - it was like being strapped to a rocket. I was pedalling throughout, harder and harder, before I released from the car at just over 160kph and got my head down and gave it all I could.All the time the Cayenne was right ahead of me, clearing the air - it was so stable. I look back on the pictures and think 'what was I thinking?' but I was so focused I didn't really take it all in. It's an incredible feeling - to get 238kph on such a short runway is beyond anything I expected. We're within touching distance of the world record. I can't thank my team and supporters enough for the help and confidence they've given me.Porsche's heritage in assisting cyclists at massive speed goes back to 1978, when a modified 935 racecar driven by Henri Pescarolo attempted to help French cyclist Jean-Claude Rude reach 240kph using the same follow-the-fast-car principle. That was ultimately unsuccessful, but it's fair to say this Cayenne's picked up where it left off rather nicely, no?