If you're into cars, chances are you've not only heard of the U.K.'s Top Gear but also watched at least a few episodes of it—it's the most popular TV show about cars and driving in the world , after all. But even if you're not really into cars, there's plenty to enjoy, as the oddball trio of Jeremy Clarkson, Richard Hammond, and James May horse around with pretty much anything that moves under its own power—or doesn't. Now nearly the whole series—more than 170 episodes spanning 240 hours of programming—is joining the existing 4,000 hours and 7,000 episodes of automotive entertainment already on the MotorTrend app for iOS and Android , including shows like Roadkill , HOT ROD Garage , Dirt Every Day , Head 2 Head , and Wheeler Dealers . Even if you've seen every episode of Top Gear U.K. or you're completely new to the series, the arrival of 25 seasons on MotorTrend is reason to celebrate. To get you started, here is a list of the 10 highest-rated ...