I looked into going to the UK & buying a new MG TF then separating its drivetrain from the body & shipping them back separately....easy & legal to do.....then I could reassemble it here in the US....& title it.
There's 1 glich though: there are no 'lines' (whatever those are) for the new MG TF for any US insurance company to use to insure it.....so, if it was involved in an accident I'd be liable...even if an insurance company did insure it, I'd be personally open for litigation by the family of anybody who might be injured or killed by a car that was not US-legal.... its a little different than the 230 Mercedes I imported years ago as the only real difference between it & a US model was the engine, same with the 323i BMW I imported......but a car that's completely different from anything imported is another issue altogether.
Or at least that's the legal advice I got.