The big change for the 2014 Nano, however, is locate dunder the hood. The 38 hp, 624 cc gas engine is a carry-over, but Tata has added a new, bi-fuel 624 cc engine variant that can make up to 33 hp running compressed natural gas. The ability to switch between gasoline and CNG will help reduce harmful emissions from the cars, and also allow Nano buyers in developing nations added mobility. Of course, with natural gas being so much cheaper than gasoline, on top of that, it seems owning and operating a Nano has gotten cheaper, still. The updated 2014 Tata Nanos now start at a more expensive, but still ludicrously cheap (by US standards) $2500 (approx.).