Not very hard, I got 40/40 in 11 minutes 54 seconds. Marisa Tomei, "Mona Lisa Vito" of "My Cousin Vinnie" would have smoked me.
http://www.zoo.com/quiz/car-engine-...+Much+Do+You+Really+Know+About+Car+Engines?+T
You may have to cut & paste if the link doesn't work.
http://www.zoo.com/quiz/car-engine-...+Much+Do+You+Really+Know+About+Car+Engines?+T
You may have to cut & paste if the link doesn't work.