Look at this:
Jolt, a blue Chevrolet Volt. Jolt was a last-minute addition to the cast as General Motors, the film's car supplier, wanted to promote the Volt. The writers had already wanted to include the car in the script before the Writers Guild strike, so they had to work out a character that would fit well within the Autobot team afterwards and convince Bay to approve the addition. Welburn was pleased the Volt's character was christened Jolt by the filmmakers, as it reflected that car's design "character".
R.I.P.
I add one more: Wheels.