General Motors recently launched an app for its vehicles called Marketplace that includes various apps that let you order and pay for things from your car. The company is continuing to add apps to Marketplace, and the latest sounds quite useful. It's called ParkWhiz, and it will be available on Cadillacs. Basically, it lets you find and pay for parking from your car.

In more detail, ParkWhiz will let you find parking in 250 cities. The app shows locations that have spaces available and which are full, along with prices for all of them. You can then select one and pay for it for however long you'll use it. You can even reserve parking in advance in case you're going to a busy event.

The big benefit here is that you should be able to eliminate a lot of cruising around looking for spaces. That will save you time and money. Additionally, this could save you from having to go really early to an event to find decent parking. It's a handy sounding app, and fortunately, if you don't have a Cadillac, you can get the app on your phone. The only downside to the phone app is that it's not built into the car's infotainment system.