The very best and worst in acceleration, stopping, efficiency, and more.

We test a lot of cars every year, and 2011 was no different—here’s a compilation of the best and the worst performers in ten categories. The list is based on test results for U.S.-specification production vehicles appearing in the magazine during 2011. Several cars appear multiple times, and two show up on both sides of the fence.

Click vehicle names for full tests.

2012 10Best: Best and Worst Test Performers of 2011