The RCD310 can be on highline or lowline versions. The difference is the MFD display on the dashboard. Here is the difference:

Lowline - no parking sensors. Can be with or without steering wheel controls. MFD display has time displayed in top left.

Highline - has parking sensors and steering wheel control. Will have the white MFD display on the cockpit cluster. Time displayed in top centre. 

This is on PQ Quadlock harness and twin fakra antenna.