The last time I used latitude and longitude was on a geography field trip aged 15, yet it’s an option on the standard satellite navigation system of our Kia Optima.

But punching in a postcode isn’t. It turns out, after much swearing and tribulation, you can input a full seven-digit postcode at the ‘City’ stage of the destination – I tried it by chance – but it then only acknowledges five of those digits. Thus Kia falls into the same sorry boat of many non-UK car brands and renders the postcode less useful than looking at a paper map.

You may cry ‘just type in the street name’, but many addresses don’t have one and don’t always crop up on points of interest either. A call to Kia to check I hadn’t missed a trick only confirmed my fear: seven-digit postcodes are a no-go, and seemingly won’t be resolved at mapping software upgrade time either.

However, there is a chink of light – the new Ceed launching this year will accept seven-digit postcodes, and all-new Kias thereafter should do too.

Kia Optima 1.7 CRDi 2 Tech (manual)
Mileage 2227
Claimed combined
consumption
57.6mpg
Our average consumption 42.5mpg
P11D price £21,640*
Model price range £19,595-£25,995
CO2 (tax) 128g/km/18%
BIK 20/40% per month £65/£130
Service interval 12,500 or 12months
Insurance group 17
Warranty 7yrs/100,000 miles
Boot space 505 litres
Engine size/power 1685cc/134hp
Top speed/0-62mph 125mph/10.2secs
Why we’re running it To see if Kia really
can mix-it with the
fleet’s big boys
Positive Smart looks, spacious,
good value
Negative Annoying satnav
*Before options fitted: Metallic paint £475