When you are looking to maximizing the range and efficiency of a plug-in car,  aerodynamics always play a big part.

Last week Car & Driver set out to find out just who and what cars did it the best.  Included in the test was 2 fully electric cars, 1 PHEV...and of course the leader of all things 'hybrid'.

  • Chevrolet Volt
  • Mercedes-Benz CLA 250
  • Nissan Leaf
  • Tesla Model S P85
  • Toyota Prius
The above video walks us through the process of quantifying the coefficient of drag area of all the contenders; and of course the results.

First place for Cd (drag coefficient) went to the Tesla Model S at an extremely low .24,  which help the EV tie with the Toyota Prius for the overall CdA (Cd x frontal area) rating of 6.2 feet - despite having the most frontal area overall.

The Tesla Model S, Despite Its Largest Footprint Still Ties For #1 Spot For Drag Area

The Tesla Model S, Despite Its Largest Footprint Still Ties For #1 Spot For Drag Area

  • Toyota Prius  - .26 Cd, 6.2 feet CdA
  • Tesla Model S  - .24 Cd, 6.2 feet CdA
  • Chevrolet Volt  - .28 Cd, 6.7 feet CdA
  • Mercedes Benz CLA 250 - .30 Cd,  7.0 feet CdA
  • Nissan LEAF - .32 Cd, 7.8 feet CdA
Besides watching the video, check out Car & Driver's feature story on the testing here.