Blue, your car is different then the current crop of 400 mph contenders but I seem to recall that Craig Breedlove Built a similar car that was going to run an AMC engine. I don't think the front wheels were in line but just inches apart. They definitely had the aero cover over the tires which were outside the body with the wing over the axle. I just seem to remember that he had some success and ran over 3 hundred. As I recall this build coinsided with a time when the SCTA banned jet cars from Bonneville. Do I have that right, does anyone else remember this car? I think it was AMC red white and BLUE. lol Tom Burkland told me that after the car gets up in that 250 mph area (referring to my car Saltosaurus) the shape of the car over comes course conditions and slight wind and it goes straight with out a lot of weather vane effect. I just don't see your design being less successful then the hugh diversity of high speed designs running currently.
Just one clarification: While I have had significant input on the aerodynamics and configuration of this design, the driving forces are Rob Freyvogle and Brandon Barn. It has turned out so well that I want one of my own.
Craig's third SOA (the first was the 525 mph jet car that went in the water, the second was Sonic 1 that went 600) was indeed a WD-LSR vehicle that was designed to capture a series of records at different displacements using AMC engines. Brandon's right, the shop flooded and the car was retrofitted with a storable liquid, bi-propellant rocket motor surplussed from the Apollo Lunar Module lower stage (Nitrogen tetroxide and Di-methyl Hydrazine). It scared the heck out of Craig, but it was quite effective and Craig still holds the 1/4 mile trap speed record with it at 374 mph.
It was dead-nuts-stable.
It did have a single front wheel, which made it a trike for rules purposes and it would have had to have a forth wheel added to comply with current SCTA, BNI, or FIA rules. It would qualify as a trike under current FIM rules. It also had an open cockpit, which must have been REALLY something at nearly 400 mph!
The NACA 66 Special (we're working on a name...) has a more conventional tandem front wheel setup like Speed Demon, Costella, and many others. Rob has studied those well-proven designs and is designing the front suspension with review of other suspension experts.