Trailering
With the extremely low ride heights these cars run, loading into trailers can be difficult. Putting your tow vehicle up on ramps will help. Beavertail/Dovetail trailers, and trailers with lower axles make life easier as well.
Ramps
Make some long ramps with lumber, with enough thickness to allow the floor of the car to clear obstacles. 9-12 feet of ramps isn’t unusual.
Technique
It is easiest for most to back the car into the trailer. Use the front quick-jack to raise the nose of the car so it does not drag. Take care not to raise the nose too much, or the edges of the tunnels will scrape.
Other Tips
A cheap winch will make life less nerve-wracking when loading & unloading the car, especially if you are doing it by yourself. Harbor Freight has a $65 remote-controlled winch that works quite well to pull the car in, and slowly lower it out.
Tie Downs
Remember, your car only weighs about 800 pounds. You don’t need to try and rip it in half with the tie-downs! Be nice to the control arms, tie-rods, and rod ends, and front jack points!