A Porsche GT3 Cup Dyno Run Would Make The World's Greatest Alarm

Need to wake up on a sleepy Tuesday afternoon? Here's a chrome shark liveried 991 Porsche 911 GT3 Cup making a dyno run in all its loud, shiny glory. » 1/27/15 6:50pm 1/27/15 6:50pm

Watch A Screaming Electric Tesla Model S Dyno Run

We've already shown you that a Tesla Model S will smoke the new BMW M5 in a drag race, and that's no small feat. It should also come as no surprise. Say what you want about Tesla or their long-term viability as a company, there's no question that their cars are fast. » 1/15/13 5:30pm 1/15/13 5:30pm