1. wiring connections
   the horns
2. the fuse
   the steering wheel

The easiest fix should always be what you start with, and in this case,​ it's a fuse. If there was a problem with the horn or wiring, you likely would have experienced intermittent problems before.

1. it overheats the engine
   you can't swap it for headers
2. it makes the engine too small
   it increases engine vibrations

An integrated exhaust manifold is part of the engine block and is cooled by the water jacket, so you can't install larger headers since there won't be room to accommodate them.

1. Jaguar Land Rover
   Toyota
2. Peugeot
   Geely

In May of 2017, Chinese automaker Geely bought Lotus by paying more than $107 million for a commanding share of stocks.

1. they have smaller channels in the tread
   the voids between tread blocks are tighter
2. the compound is softer
   the sidewalls are taller

Using winter tires in snow provides a serious benefit because they're designed to provide optimal grip in those conditions, even when compared to all-season tires.

1. how the power is split
   the presence of a transfer case
2. the size of the transaxles
   nothing

The lines between four-wheel drive and all-wheel drive are sometimes blurry, but remember that four-wheel drive is usually featured on truck-based SUVs, while all-wheel drive is for cars and other unibody vehicles, usually.

1. laundry pods
   toothpaste
2. rubber bands
   dryer sheets

The plastic lenses on headlights fog up from the material oxidizing, but toothpaste can strip off the initial layer or plastic

1. it shortens the stick
   they weigh less
2. they don't improve anything
   it moves the pivot point higher up the shift rod

While short throw shifters are usually shorter, it's the changed pivot point that allows you to make gear changes faster, shaving precious milliseconds off times for racing.

1. the air-fuel mixture is extra rich
   the turbo does it
2. it's from using nitrous oxide
   they have extra short exhaust systems

With an extra rich air-fuel mixture, fuel that hasn't been burned in the cylinders makes its way to the exhaust system where it burns in the extreme heat, producing the flames.

1. meeting up after a competition
   when a tire stops spinning and provides optimal traction
2. deploying the parachute
   shifting quickly

Spinning tires don't help a car accelerate quickly, so ideally you have little to no tire spin and instead the tires hook up quickly, giving you a better start.

1. centrifugal
   corkscrew
2. Roots-type
   Eaton

A Roots-type supercharger can have a large intake sticking out of a car's hood, channeling air into the supercharger's body as the car drives.

1. length
   lobe shape
2. smoothness
   composition

The shape of camshaft lobes affects how long the valves are open, and how wide they open, which has a direct effect on how the engine performs.

1. Holden Commodore
   Chevy Corvette ZO6
2. Daewoo Invertia
   Buick LeSabre

The VF Commodore, or the fourth generation of the muscle sedan, was rebadged and sold in the United States as a Chevy.

1. Ferrari Dino 260
   Lotus Esprit
2. British Lola MK6
   Chevy Corvette

After being snubbed by Ferrari, Ford sought out a vehicle it could use in endurance racing, partly settling on the Lola MK6 since it used a Ford V-8 engine already.

1. turbocharged
   all-wheel-drive
2. front-wheel-drive
   supercharged

Front-wheel-drive cars are mostly affected by torque steer, which is when the car pulls to one side or the other under hard acceleration.

1. it looks cool
   they provide better grip when the tires are aired down
2. in case they drive up rock walls
   it wicks away moisture better

When driving on soft surfaces like mud or sand, lowering the air in the tires improves grip, and having the tread on the sidewalls helps even further.

1. chunnels
   evacuation luges
2. channels
   voids

The voids in between lugs help water, mud, snow, slush, etc. escape from under the tire, boosting traction, while at the same time generating more noise.

1. Lotus-Killer
   Godzilla
2. Raging Eagle
   Gale Force

After the original Nissan Skyline GT-R dominated in motorsports events, automotive press started referring to the car as Godzilla and the name stuck.

1. thermostat
   heat corridors
2. coolant tubes
   water jacket

Instead of relying on air cooling, modern engines pipe coolant through the engine through this system, regulating engine temperature accordingly.

1. drag racing
   prohibition
2. beach races
   Sunday drives

Believe it or not, NASCAR has its origins in men who would modify their stock cars to outrun the police as they transported alcohol from where it was made to speakeasies.

1. check the gap
   spread oil on the electrode
2. tighten the electrode
   nothing

While spark plugs come already gapped, there's no guarantee the gap is correct for your engine, so you must check it first.

1. Martin Hemingway
   hemispherical combustion chambers
2. Hermitrio Gesucci
   Jame Hemitro

Despite what people think, Chrysler isn't the only automaker to create engines with hemispherical combustion chambers, which boost efficiency and, in turn, power.

1. increasing stroke
   increasing bore
2. reprogramming the ECU
   machining the engine

There are many other terms for this, but it's when you reprogram the engine control unit to make better use of bolt-on or even internal engine modifications.

1. Chevrolet Corvette Z06
   Ford Mustang GT
2. Toyota MR2
   Mitsubishi Lancer Evolution

The Evo employed all kinds of trickery to make it faster and handle better, including advanced lightweighting techniques for the time, like shedding weight from the camshafts.

1. WRC
   NASCAR
2. European Grand Prix
   Indy Racing

In the 1920s and 1930s, the European Grand Prix was the premiere racing series in Europe, but it was suspended because of World War II.

1. add an intercooler
   install a wastegate
2. open up the blow-off valve
   increase the boost pressure

Dialing in a turbo will increase boost pressure. You just need to have an engine that can handle it.

1. Quarto
   Quattro
2. Kompressor
   Vier

Audi got the name from "quatro" or "four" in Spanish, because power goes to all four wheels of the car.

1. lightness
   turbos
2. wastegates
   large wings

Lotus is considered one of the foremost authorities on lightweighting, if not the leader in the practice, thanks to the founder's emphasis of the practice long ago.

1. when turbos stutter between gears
   a delay of torque delivery from a turbocharged engine
2. oil starvation to a turbocharger
   a turbocharger overheating

Larger turbos are more prone to lag because they need more time to spool up, or get the turbines spinning enough to create sufficient air movement to have an effect on performance.

1. to look cool
   to get the engine completely warm
2. to heat up the tires
   to wear down the tire tread

A burnout will make the tires stickier, which helps the car launch faster because stickier tires achieve more grip on the slick track, reducing the car's quarter mile time.

1. camshaft seals
   pulleys
2. valve seals
   lifters

Most people forget that the pulleys on their car don't last forever, but like the belts, they too need to be swapped out regularly and can contribute to, or even be the sole source of, squealing noises.

1. fuel cap
   gas tank
2. fuel pump
   fuel injectors

Modern fuel pumps are lubricated by the fuel itself, so if they run without fuel flowing through them, they might suffer irreparable damage.

1. Le Mans
   Indy 500
2. Dubai Grand Prix
   Pikes Peak International Hill Climb

On the last Sunday of June each year, racers from all over the world converge at the Mile 7 marker on the Pikes Peak Highway to individually race to the top of Pikes Peak.

1. channels air into the cabin
   increases aerodynamics
2. produces downforce
   cools the brakes

Air conditioning provides more of a drag than a roof scoop, so it's a good way to keep the driver and navigator cool enough while racing.

1. when you flood the engine
   when you drive into deep water
2. when the radiator overflows
   when the brake fluid temporarily turns into a gas

Vapor lock usually occurs when you've been riding the brakes on your vehicle excessively, like when descending a steep mountain pass, and leads to complete loss of braking power.

1. in the front bumper
   under the driver's seat
2. behind the spare tire
   all along the entire chassis

The driver sat over the gas tank, a design that meant snipers couldn't choose to either hit the gas tank or the driver, making the Jeeps harder to stop.