Ken, were you thinking of the VW-bodied van? It was pretty cool but I don't remember the speed.
Creekrat - I suggest you get a rule book (look on the website <ecta-lsr.com> for contact info) and see where the van might fit in the class structure. I don't remember just where they fit and you might end up running in T/O (time only) which is still fun but there are no records there of course. Especially if you're interested in the April meet you need to get motel reservations NOW. Pre-entry opens in January and you'll want to get yours in ASAP as the April meet fills quickly.
Is your Mustang a convert? If so, you're right that it'll need at least a 4 point (mine has a 6 point Max Motorsports and techs to 150). If it's a hardtop you can run but cannot exceed 135MPH. Takes some self-control.
Dan