Europeans' awareness and usage of smartphone applications in the car is lower than many people think.

Market researchers Frost & Sullivan found in a survey of 1,911 customers in Germany, Italy, Britain and France, that the most popular smartphone apps are navigation and live traffic information.

"Yet they are used less than one hour at a time," Frost & Sullivan research analyst Praveen Chandrasekar said in a press release.

Frost & Sullivan predicted that usage of apps in the car will increase, but it warned car manufacturers that car-related apps would not provide significant revenue opportunities.

The survey found that consumers prefer Bluetooth connections over cables and that they expect Bluetooth to become the standard mode of in-car connectivity.

"Car manufacturers may eventually be pressured to include it as a standard feature," the report said.