
Americans call a car bonnet a "hood." This is the standard term used across the United States and Canada for the hinged metal panel that covers the engine compartment at the front of a vehicle. The term "bonnet" is primarily used in British English and other Commonwealth countries.
The distinction is a classic example of automotive vocabulary differences between American and British English. Using the correct regional term is crucial for clear communication, especially when discussing repairs, purchasing parts, or following instructional manuals. In a U.S. auto parts store or mechanic's shop, asking for a "bonnet" will likely cause confusion, whereas "hood" is universally understood.
This linguistic divergence extends beyond just one part. Several common car components have different names across the Atlantic. For clarity, here are key terms:
| UK English Term | US English Term | What It Refers To |
|---|---|---|
| Bonnet | Hood | Engine cover |
| Boot | Trunk | Storage compartment at the rear |
| Windscreen | Windshield | Front window |
| Wing | Fender | Panel over the wheel arch |
| Indicator | Turn Signal / Blinker | Directional light |
| Silencer | Muffler | Exhaust noise reduction part |
| Petrol | Gas / Gasoline | Fuel |
| Tyre | Tire | Wheel covering |
The prevalence of "hood" in North America is reinforced by its use in all official documentation, from vehicle titles and repair manuals to marketing materials from manufacturers like and Chevrolet. Industry data, such as parts catalog searches, shows that "hood" is the exclusive search term used in the U.S. market, with "bonnet" searches being negligible outside of contexts specifically targeting UK imports.
For anyone interacting with the automotive industry in North America, defaulting to "hood" is essential. This applies to everyday conversations, online searches for replacement parts, and when describing damage to insurance companies. While enthusiasts of British cars might use "bonnet" in niche circles, the broader market operates on the American lexicon. Understanding these terms prevents misunderstandings and ensures you get the right part or service.

I moved from London to Texas last year, and my first trip to the auto shop was a lesson. My car's check engine light was on, and I told the mechanic I was worried about a noise under the "bonnet." He just stared at me, completely blank. I had to physically point to the front of my car. He laughed and said, "Oh, the hood! Why didn't you just say so?" Now I always use "hood." It saves so much time and confusion. I also learned to ask for the "trunk" instead of the "boot" and "gas" instead of "petrol." It’s the little things that help you settle in.

As a mechanic in Chicago for over 20 years, I've only ever called it a hood. If a customer comes in and asks me to look at their "bonnet," I know one of two things: they're either from overseas or they're a real anglophile who owns a classic . In my shop manuals, parts databases, and when I order from suppliers, the term is always "hood." A hood latch, hood strut, hood insulator—that's the language of the trade here. When we estimate repair costs for a front-end collision, we assess "hood damage." Using the right word isn't just about being correct; it's about making sure there are no mistakes in the work order. Clarity is key in this job.

The shift from "bonnet" to "hood" is fascinating from a language perspective. Both words originally described types of headwear, which makes sense for something that covers the "head" or engine of the car. "Hood" simply became the preferred term in American English. This pattern of divergence happened with many words after the American Revolution, as the U.S. consciously distanced itself from British norms. It's not that one is wrong; they are regional variants. If you're watching a British car show like Top Gear, you'll hear "bonnet." In an American film like Fast & Furious, it's always "hood." Knowing which to use depends entirely on your audience and location.

For travelers and new residents, getting the car terms right is a practical tip. Renting a car in the U.S.? If you need to check the oil, you pop the "hood," not the "bonnet." The release lever inside the car is usually labeled as such. If you have a flat tire, the spare is likely in the "trunk," not the "boot." These terms are also vital for road safety. If you break down and call for help, telling the operator, "There's smoke coming from the hood," will get you the fastest, clearest response. Sticking to British terms might lead to brief confusion, which is the last thing you need in an emergency. Adopting the local vocabulary for your vehicle is a simple way to navigate daily life more smoothly.


