The latest portable navigation unit from Clarion forges 360° 3D mapping with lane indication and signpost information to deliver its clearest navigation experience.

The MAP790, which costs £279, uses two separate programmes to draw buildings in the foreground and background.

Buildings close to the driver appear see-through as you approach them, so as not to obstruct the view of the next junction, while buildings further away are textured and solid, making them lifelike and easily recognisable as reference points while driving.

In addition, while street names are displayed on screen, the voice guidance gives the name of the approaching road and instructions leading up to it, in the same way a passenger would navigate.

The MAP790 is pre-installed with map data for 44 European countries and voice guidance is offered in 38 languages.

It also makes the most of Bluetooth connectivity to display SMS (text) messages on-screen, as well as giving touch-screen access to a paired phone or PDA, while audio streaming (A2DP) and MP3/WMA playback is also possible via a built-in music player.