Originally posted by odpurple
Link cars use a single center pivot ball to hinge the motor pod with a tie rod (link) on each side. Link cars can have the batteries in a single row in the center of the car, t-bar cars must use a saddle pack. Speedmerchant Rev 4 and CRC Carpet Knife 3.2 are the two currently available link cars.
Don't forget the Hara conversion. It is neither T bar nor link. I don't know what you would call it. A U block? It does use a pivot to hinge the motor pod and a block of aluminum in the shape of an upside down U to mount the springs.