[TimMullen]

The best way to tie down your Elise is with a "wheel net" - and the one with the "remote " ratchet is ideal. Here's a link: Wheel Nets - Wheel Net Package w/ Idler & DH Ratchet (Medium). Other options: Wheel Nets

 

[TimMullen]

I'm going to be towing two different cars with different wheelbases (spec miata and the elise), so the wheel nets would be much harder to install to make that work. =/

Use "E-track" on the trailer - a bracket that has multiple positions to attach the tie-downs to. The site I linked to previously has something similar call "versa-track", but "E-Track" is a standard and widely available. Here's a link: Mac's VersaTie track kits, aluminum track, E track, and deck hardware

Here's a trailer supply place: For the track, and for the E-Track hardware. Google "E-Track" and you will find more sources than you could possibly need...