The Polaris Slingshot is a three-wheeled vehicle that isn't quite a car, but it's not a motorcycle ether. Many states register it as an autocycle, which can sometimes require a motorcycle license. Polaris introduced the Slingshot back in 2015 and it has received some minor trim changes since then. Some ambitious tuners have even swapped out the General Motors 2.4-liter EcoTec four-cylinder motor and shoved in a 2JZ turbo inline-six from a Toyota Supra.

But for the first time since the Slingshot was released five years ago, Polaris has just teased a big update for the autocycle. The company posted a teaser video on its website with a countdown clock ticking down to the big reveal. The teaser includes the following caption:
"The biggest news since the Slingshot launched in 2015 is coming. Don't miss it."

The teaser only shows the front fascia in the dark, but we can clearly tell the new car will ditch the round headlights of the current model for more stylized LEDs. We don't expect the car's bodywork to change much but new front and rear fascias seem like obvious new additions. The current model uses a (discontinued) GM four-cylinder engine sending 173 horsepower to the rear wheel but there is a possibility that Polaris will use a newer powertrain on this refreshed car. The 2.0-liter turbocharged four-cylinder from the Chevrolet Camaro would give a healthy power bump to 275 hp.

There's also a slight chance that Polaris turns to another engine supplier or uses one of its own engines, but GM has a reputation for building motors that are easy to work on an easy to find parts for. No matter what engine it uses, we expect this updated Slingshot to ditch its five-speed manual transmission for a newer six-speed unit. The new Polaris Slingshot will be revealed on January 14, 2020.