This Car Parts Quiz Stumps Even Seasoned Gearheads – Can You Beat It?

Identify this engine-top essential. What is it?

Fire up the ignition and put your mechanical IQ to the test! From the spark that starts it all to the exhaust that finishes the job, cars are complex puzzles. Whether you’re a pro mechanic or just a casual driver, see if you can identify these 40 essential components. One picture, four choices, and only the sharpest minds will hit the redline. Strap in—let's see what's under the hood!