I haven't looked at a current GCR for this, but IIRC, there are no bike engines currently allowed in FA, right?
Any chance that might change?
Reason for asking: Sometimes I wonder if I might be able to afford more races if my Swift DB-4 had bike power rather than a Toyota/Staffs drive train. I don't know if that's really true, but it might be.
I realize, of course, that if the bike engine put out similar HP then it would be very expensive. I was thinking more along the lines of sacrificing some performance in exchange for less expensive running costs.