To be specific, the Leaf and Volt look dishearteningly like the dullest of Nissan and Chevrolet’s gas guzzlers. The same applies to one of the four concept plug-ins that Renault unveiled last month at the Frankfurt motor show, while the other three seemed downright scary. The i-MiEV looks chillingly like a Smart car that’s been pigging out at Krispy Kreme. The Tesla Roadster Sport has its fans, although I’m not among them. It isn’t quite foxy enough (especially for a starting price of $101,500) yet almost qualifies as a hottie compared to the Tesla Model S saloon, which is due out in 2012 and threatens to look as staid as the Volt. The less said about the G-Wiz the better. The cutest plug-in I’ve seen so far isn’t a car but a “baby” truck, made by Modec.