Get the Speedmerchant Rev5! The front end is great. If you don't get a Rev5 seriously consider getting one of the other link-based cars (CRC Gen-X ... not sure about 12R5 yet).
The BMI DB12R is probably great on asphalt (I've been running my Rev5) but the car just doesn't have the proper corner speed on tight carpet tracks. The BMI also is a pain in the arse to install/remove brushless motors.