Most versions have a wide range of seat adjustment, although entry-level S models don’t get height adjustment, so bear that in mind if you’re particularly short or tall.
It’s disappointing that, on all versions, the steering wheel adjusts up and down but not in and out. Some people may also find the seat is a bit short of lumbar support, which can be an issue on longer journeys. Then again, most of the above also applies to the Mii’s key rivals.
The major controls are sensibly laid out and within easy reach. One annoyance is that, on versions with electric windows, there isn’t a switch for the passenger window on the driver’s side; you have to lean over to use the switch on the passenger door.
Seat Mii visibility
Forward and side visibility is excellent, because the Mii’s thin pillars don’t obstruct your view too badly and the tall side windows provide a good range of sight.
Rear visibility is slightly less impressive, although the Seat’s rear pillars are still thinner than those in many rivals and its rear window is a reasonable size. The car’s square shape also makes judging its extremities relatively easy.
Rear parking sensors are an optional extra, but only on some versions.
Seat Mii infotainment
Entry-level S and mid-range SE models come with a simple CD/radio system with a monochrome display. Bluetooth connectivity isn’t standard on these trims, but there is a 3.5mm aux input for connecting your MP3 player.
A removable five-inch touchscreen system is available as a relatively cheap optional extra on these trims; it comes as standard on more expensive models. The system includes Bluetooth, sat-nav and voice control, and its graphics are clear and the menus are easy to understand, even if some of the tiny on-screen buttons are tricky to press on the move.
It’s disappointing that DAB radio is a relatively pricey option, and while the Mii is available with an upgraded stereo system, there isn’t even the option of a USB socket. This means charging mobile phones requires you to buy an aftermarket 12V USB socket adapter.
Seat Mii build quality
As is the case with almost every other city car, the Mii’s cabin is built from hard and unforgiving materials. However, the general construction is extremely solid, and the plastics are textured in such a way that they feel anything but cheap.
SE models are even better, because these have a gloss white dashboard face that really lifts the interior, while pricier I-Tech and Sport versions have a gloss grey finish instead.
Entry-level S cars have a plastic steering wheel that emphasises the Mii’s budget price a bit too much, but SE versions and above get a far nicer leather-wrapped rim.