[Excaliber]

I imagine it would take the same kind of "stuff" to make a race BDR legal as it would a race FFR. Nothing special, wipers, headlights, turn signals, etc. Having done all that it wouldn't be any different to register in any state, just like any other replica.

Not all the race only FFR's are built solely for the FFR race series, which does in fact require many stock comonents to keep the cost down.

The Mark 1 FFR that ran here in Oregon recently? The car originally had a live axle, the owner installed IRS, nice touch!