Stephan Wilkinson

PopSci.com tries out the 2007 Porsche Turbo

Can¿I¿Plug In My¿Prius?

Inexpensive and efficient, the smallest cars are finally available in the U.S.

A new brake concept uses a car’s energy to slow itself down, making brake fluid obsolete

For 64 years, concept cars have wooed and wowed the driving public. Many made empty promises, but the best foreshadowed real technological change.

These high-performance machines will run you as much as $15,000. Here's why a custom-built racer is a bargain

Two Vietnam-era planes provided an effective proof-of-concept for the notion of stealth reconnaissance. Then they disappeared.

Want more horsepower? Put away the Snap-ons–this is a job for a gearhead with a laptop.

How do you completely disassemble a classic sports car and rebuild it better than new? You take a deep breath and dive in.

What goes 0-to-60 in 4.7 seconds, looks like a crouching cat and may, at 150 large, be a bargain of auto technology?