Hey Ken, I agree with you COMPLETELY on this one. I find it rather astonishing that people are dropping $30-50K on a 2nd hand sports car, no matter how outstanding it is, before they are building up some net worth. It's a rather childish proposition, from a financial standpoint.
FYI: NSX $0 (bought with cash out from my last Re-fi on my house, so I effectively got a 4.75% car loan with a 50% tax break on the interest - 40% federal and 10% state, here in California).
Mortagage: $2375 on a 15 year note at 4.75% (although, effectively about $275 of my mortgage payment is actually the extra cash out that I took to buy the NSX, but that's mostly tax deductible interest, so in REAL terms, my NSX has a 15 year loan that costs me around $175 a month since I save $100/month in taxes out of the $275).
That, my friends, is how to finance an NSX.