The PNA – Pure Navigation Assistant, in case you were wondering – is a neat device, an embodiment of the Teutonic roots of Navigon.

The pleasant looks, softly orange backlit keys and compact size make the PNA suitable for the most suave of cars. The only problem is that the windscreen mount is embarrassingly wobbly; the long, flexible arm maintains road vibration like a well-tuned guitar string. But without the note.

Easy to use, intuitive and quick to respond

Anyway, once you have the PNA in a safe position – the folding antenna looks basic but is barely noticeable in use and works fine – you can inspect the software. If you’re as well-versed in Global Positioning Systems as we are, you’ll notice it’s the same (in all but name) as that used by the Mio 268.

That’s no big deal as it’s a user-friendly system but, bizarrely, the refresh rate is better on this device than on the Mio. They’re running the same hardware – an Intel PXA255 300MHz processor – but the Pure Navigation Assistant performs better all the same.

Warning: do not fiddle with on the move

One key piece of advice, though: take time to set up your destination(s) and which of the various on-screen display options you want before you set off, as they’re fiddly to change on the fly. We want you as readers, not roadkill.

Once motoring, we preferred the 3D map mode, which showed a sizable chunk of upcoming road in a recognisable, rather than over-stylish, way. Voice instructions were well-timed, too, and, to our chagrin, better at describing some junctions than we were.

It’s a shame that the poor fitting kit lets the Navigon PNA down, as the software is excellent.

Stuff says... 

Navigon PNA review

Decent software drives the Pure Navigation Assistant close to top marks, but the poor fitting kit unfortunately lets it down