Trinity has been working hard on the development of their new D4 series 1/10 scale brushless motors. Trinity fans are anxiously awaiting the D4, and now have the opportunity to own the pre-production D4 17.5 used by head designer, Jim Dieter, for testing. The hand built motor went up for auction earlier this week, and with only 1 day remaining on clock the motor has reached a staggering $490! We expect with over 60+ bids already, the D4 will reach well over $500. How deep are your pockets? CLICK HERE to get in on the action!