And, since my next Public race is going to be a BATSeven season, I wanted to ask someone with expirience with those, which of the many makes and engines is the best - in terms of reliability, speed and consistency. I reckon the DAX Rush Quadra makes a reasonable choice, since it has the grunt and the 4WD to deliver is - yet in a battle for handling and lightness, it should loose. The Bike-engines should be plenty fast, but what about reliability? Shame they don't give the Caterham CSR260, or Westfield Sport 2000S (fastest Seven ever built - a second quicker than an Atom around Anglesey Circuit), or at least the 210HP Zetec in the Westfield...