The Nissan LEAF Plus offers an EPA-estimated 226 miles of range, which is 76 more miles than the base LEAF offers. The LEAF starts at $29,990, making it the least expensive battery-electric car on the U.S. market today. However, to get the longer-range Plus model, you'll have to pay about $6,500 extra. The LEAF Plus carries a starting MSRP of $36,550.

The LEAF Plus' dollars per mile of range comes out to $162. Keep in mind that the LEAF is still eligible for the full $7,500 EV tax credit. You'll have to check with a tax professional to find out if you can take advantage of it.