Modified

There are countless tales of classic cars and trucks receiving new life via parts from a completely different automobile. Whether it's an engine swap, a new platform, or a mix of a few different vehicles, project cars make for some of the greatest stories. This 1946 Chevrolet pickup truck is...

This modified Tesla Model S may be the ugliest yet.

Harley-Davidson owners are highly likely to remove emissions controls from motorcycles, one group claims.

Harley-Davidson settled with the government over the sale of devices that increase emissions.

Car modifiers continue to push for more lenient emissions rules.

A 1978 Ferrari 308 GTS gets converted to electric power.

A California company is building a Tesla Model S stretch limousine.

An electric Corvette recently achieved 186.8 mph after one mile.

With some tinkering, it's possible to bypass emissions controls on diesel vehicles.

A Boston-area executive converts a classic Volkswagen to solar power.

XL Hybrids unveils a conversion kit for the Ford Transit full-size van.

A 1975 Enfield electric car morphs into a drag racer.

Zero South plans to drive two modified Hummers to the South Pole without using any fossil fuels.

Nissan turns an e-NV200 electric van into a barbecue on wheels.

A golf-cart maker produces an electric tribute to the Ford F-150 SVT Raptor.

An electric car's main purposes are those of efficiency and reducing reliance on oil. But as cars, they're also objects ingrained into culture and often bought for emotive reasons, like speed and aesthetics. It's no surprise that with both plenty of performance and a sleek body style, the Tesla...

Ask Honda fans what's wrong with the CR-Z hybrid coupe, and they'll give you one of two answers. Those who seek economy will tell you it's not frugal enough. Those after performance will tell you it isn't fast enough. Fixing the former probably requires a little too much work for most, but thanks...

Saleen used the 2014 Pebble Beach Concours d'Elegance to unveil its take on the Tesla Model S electric sedan, the FourSixteen. More familiar to fans of high-performance gasoline-fueled road cars, Saleen has gone green with its latest modified vehicle, a car company boss Steve Saleen describes as...

No matter how fast a car is, there's always someone who'll want to make it faster. That's why you'll find as many companies tuning high-end cars as there are modifying pony cars or basic subcompacts. And it's why Saleen is developing its own hot-rodded version of the Tesla Model S electric sedan...

Saleen Automotive is well-known for its high-performance tuning on familiar models like the Ford Mustang. But what car do you choose if you want to tackle an electric model? Given the Ford connection, maybe the Focus EV? Perhaps the high-selling Nissan Leaf? No--instead you go for an electric car...