I have had a lifelong interest in the environment but the lure of motor racing got the better of me in my teens, both designing and driving racing cars.  I studied engineering and ran a business for 15 years designing new racing cars and restoring old ones.  I got out for environmental reasons and wrote a feasibility study on commercial introduction of hydrogen cars during an MBA at Cranfield in 1999 then set up Riversimple, on the basis that a step change in automotive technology is both essential and possible.  A short production run of the Rasa, as in Tabula Rasa, is being trialled in Wales and we are currently raising funds to establish our first plant for volume production.