He did not get an "A", but mom is not upset by that. He did get a "B", and this is how it got scored. There were three categories; Distance, Speed and Creativity.
For distance PlusOne got an 85 - Car moved. (100 was car moved 5 meters or more)
For Speed PlusOne got an 85 - Car's speed is above class average. (100 was car's speed exceeds the class average by 10%)
For Creativity PlusOne got an 80 - Car meets average expectations. (100 was car voted as top car on the team. 85 was car is voted on as a top classroom car.
B = 240 - 269 points. PlusOne got 250 points.
Considering everything, mom is very happy about it. The darn thing moved! And that made mom happy. The speed being above class average was way cool. It moved .46 meters/second.
Thanks for all your positive thoughts and comments. Mom is really happy its DONE and OVER WITH. :)