Federal auto safety regulators have granted a five-week extension for Tesla to respond to allegations that its vehicles have ...

To be fair to Tesla, NHTSA has asked for a comprehensive amount of information: a list of every Tesla produced and sold or ...

We tested popular wideband O₂ controllers against lab-grade equipment to see how accurate their lambda readings really are under real engine conditions.

With 42 Kentucky Derby qualifying points up for grabs, 11 3-year-olds are set to go postward in 1 1/16-mile test ...

Come with us as we push nine different performance cars to their limits, on the track and on the road, over a week-long test ...

Manufacturers send out scads of engineers and support crews every year in hopes of securing victory. Here’s what they’re ...

SEC no longer rules college football’s postseason. Next week will test whether the league can bend the Big Ten to its will at ...

Now, the Rhode Island attorney general's office is asking a judge to find that Godbout, 41, of 332 Canonchet Road, Apt. 203, ...

The safest new vehicles in Australia are almost all electric, with the top performers delivering consistently across ...

NASCAR will test its new 750-horsepower Cup Series package at North Wilkesboro as teams prepare for the track’s 2026 points return up ...

NTT INDYCAR SERIES testing is limited to save teams money, so drivers and crews must make the most of every minute in the pits and on track to gather valuable data.