Yakima Sidewinder. I got one on Craigslist two months ago for $125. Love it. Its mounted on an Audi A4 wagon and there's plenty of room for the cranks to stay out of the way when the front fork is in the swing-out arm and the back wheel is on the ground. This particular piece of geometry is critical to your particular car. The taller the car, the closer the crank will be to the car when mounting the tandem in the swing-out arm. It can be cured by using wider bars on the roof rack and mounting the Sidewinder OUTBOARD of the roof rack towers. The Sidewinder has to mount on the driver's side because the timing chain will prevent you from being able to put the boom tube in the rear support of the Sidewinder. All of this supposes that you already have a Yakima roof rack although those can be had on Craigslist pretty cheap, too. The Sidewinder does put the tandem back further on the vehicle but we are still able to get to our rear hatch and open it a little more than half way before it hits the tandem's rear tire which is enough room to access stuff.
Jeff