The national average for a gallon of gasoline is $4.55, as America heads into one of the busiest travel weekends of the year.

Many fleet operators can't easily pivot to more fuel-efficient vehicles since they need vans and pickups to haul and tow.

Formula 1 engine designers are wizards. They’re able to take F1’s incredibly complicated, highly restrictive rulebook and use it to create engines that are smaller than the Toyota Corolla’s but make 1 ...