[Excaliber]

10" is certainly a typo or at best needs clarification. My Excalibur was 4" longer and 4" wider and it was quite obvious it was 'different' when parked next to a standard size replica. Otherwise, the average person at a car show could not tell the difference.

What is the actual wheel base and width of a BDR compared to an original?

w-lewis still makes a valid point for those seeking something closer to original specs, a worthy goal.