Top 10 Best & Worst Green New Cars of 2015

Caring for the environment is not a bad thing. One of the ways to do your part is to drive an eco-friendly vehicle that gets great gas mileage.

Manufacturers have done a great job making several different makes models for you to choose from. However with "newer" technology, some of these vehicles are "greener" than others.

If you've been kicking around the idea of buying an earth friendly vehicle but not sure if you should get electric, hydrogen or CNG. Check out the lists below to see the best and worse green cars available in 2015.

The ranking of the vehicles below is based on Greenercars.org's data. They are the Nation's "go-to-guide" to environmentally friendly passenger vehicles and trucks. You can see more on how they determined the ratings of the vehicles at their website here.

Top 10 Best Rated Green Cars of 2015

Rank Make and Model Specifications Emission standard a MPG City MPG Hwy Green Score
1 Mercedez-Benz Smart Fortwo Electric Drive Conv. / Coupe 1,b Electric (Li-ion battery) ZEV / Bin 1 3.61 2.77 61
2 Chevrolet Spark EV b Electric (Li-ion battery) ZEV / Bin 1 3.81 3.24 59
3 Fiat 500E b Electric (Li-ion battery) ZEV / Bin 1 3.63 3.21 59
4 Toyota Prius C 1.5 4, auto CVT SULEV II / Bin 3 53 46 57
5 Nissan Leaf b Electric (Li-ion battery) ZEV / Bin 1 3.75 3.01 57
6 Toyota Prius Plug-in Hybrid Electric (Li-ion bat.) / 1.8L 4, auto CVT PZEV / Bin 3 3.90 / 51 3.04 / 49 54
7 Lexus CT 200 H 1.8L 4, auto CVT SULEV II / Bin 2 51 48 54
8 Honda Civic Hybrid 1.8L 4, auto CVT Bin 3 44 47 54
9 Honda Civic Natural Gas 1.8L 4, auto [CNG] PZEV / Bin 2 27 38 54
10 Mitsubishi Mirage 1.2L 3, auto CVT Bin 5 / LEV II 37 44 54
[CNG] denotes compressed natural gas
[P] Denotes Premium Gasoline.
"Auto CVT" denotes continuously variable automatic transmission.
a A listing with two emission standards (e.g., Tier 2 Bin 2/ PZEV) denotes a single vehicle carrying both a federal and a California emission certification. Green Scores for such listings reflect the cleaner of the two certifications.
b Fuel economy for electric vehicles is provided in miles per kilowatt-hour.
c Fuel economy for plug-in hybrids is provided in miles per gallon for gasoline operation and in miles per kilowatt-hour for electric operation
1. The gasoline-powered version of this vehicle scores a 53
2. The non-plug in Prius also earns a Green Score of 54

Top 10 Worst Rated Green Cars of 2015

Rank Make and Model Specifications Emission standard a MPG City MPG Hwy Green Score
1 Ram 2500 (Class 2b) 1,2 5.7L 8, auto 4wd LEV II 12 17 17
2 Chevrolet G2500 Express / GMC Savana (CARGO CONVERSION) (MDPV) 3, 4, 5 6.0L 8, auto Bin 8 / ULEV II 10 15 18
3 Bugatti Veyron 8.0L 16, auto Awd [P] Bin 5 / LEV II 8 15 19
4 Bentley Mulsanne 6.8L 8, auto stk [P] Bin 5 / LEV II 11 18 21
5 Mercedes-Benz G 63 AMG 5.5L 8, auto 4wd [P] ULEV II / Bin 5 12 14 21
6 Mercedes-Benz G 550 5.5L 8, auto 4wd [P] ULEV II / Bin 5 12 15 22
7 Rolls-Royce Phantom Drophead Coupe 6 6.7L 12, auto stk [P] Bin 5 / LEV II 11 19 23
8 Lamborghini Aventador Roadster 6.5L 12, auto Awd [P] Bin 5 / LEV II 10 16 23
9 Toyota Sequoia FFV 7 5.7L 8, auto stk 4wd Bin 5 13 17 23
10 Lexus LX 570 5.7L 8, auto stk 4wd [P] ULEV II / Bin 5 12 17 23
"auto stk" denotes manually adjustable automatic transmission
a. A listing with two emission standards (e.g., Tier 2 Bin 2/ PZEV) denotes a single vehicle carrying both a federal and a California emission certification. Green Scores for such listings reflect the cleaner of the two certifications.
1. The 2wd version of this vehicle earns a Green Score of 18
2. The ULEV version of this vehicle earns a Green Score of 21
3. The Tier 2-only versions of these vehicles (bin 8 ) also earn a Green Score of 18
4. The passenger versions of these vehicles earn a Green Score of 19
5. The 3500 version of these vehicles earn a Green Score of 19
6. The Rolls-Royce Phantom EWB also earns a Green Score of 23
7. The non-FFV version of this vehicle also earns a Green Score of 23

If you're considering the purchase of a new green eco-friendly vehicle. Use an online service to get the best price and not have to worry about dealing with frontline car salesman at the dealership. I recommend TrueCar and CarClearanceDeals to request free no-obligation price quotes.

These companies will let you know what others are paying for the vehicle you're considering, and also what dealers in your local area are more willing to discount the vehicle for you.