You own them on the Tesla's. Think it's Renault who are doing the 'leased' thing.
We had Tesla visit us at work a while ago, and I managed to grab a test drive of the Roadster just before they left. It's an incredible bit of kit. The battery range is, in the grand scheme of electric cars, pretty good (providing you don't hoon it *everywhere*). It reminded me of a mates VX220 - in that it felt like a stripped out racer inside and you sit practically on the tarmac. Quick prod of the accelerator (or is that potentiometer) and it's astonishingly quick - but it's the torque that gets you hooked. It's a non-stop shove in the back. No gear change, no lag, no tailing off of the power, just keeps going until you get too scared (which was pretty quickly on the small lanes round my office!)
If I had the cash - I'd be looking for something electric, or at least hybrid (to the point of the petrol/diesel engine generating the electricity, and not being connected to the wheels).
I'm off to Le Mans later this year with some mates. Last year the Nissan Delta was the star of the show for me, this year we'll get to watch the first Hydrogen powered car at Le Mans. Looks like an incredible bit of kit:
http://www.greengt.com/en/greengt-h2.php