Let’s get the obvious out of the way, the interior isn’t bad, it’s rare that a modern car has a bad interior, it’s a scale of how good it is, this is somewhere in the middle of that scale. The first thing you’ll notice is that this car is rocking cloth seats, I was slightly surprised that’s an option on the top of the line 1 series, but i've actually grown to be fond of manufacturers letting you go for the lighter and simpler cloth option over leather. The seats themselves are decently comfy, but have enough side bolstering that I can say they’re sporty, however I doubt you'll be able to relax in them as they lack the padding to offset the harsh ride. The seats don't lack adjustment either, you can sit as low as a go-kart or high enough that even the shortest bloke will see over the wheel. The center screen and all the controls are easily accessible and easy to learn, I generally got the hang of it within the first few minutes of driving, something I can't say about all the cars I drive. The dashboard is digital, but looks like an analog one, I personally don’t mind it, the needles are smooth and it never seemed to lag behind or freeze. Below the dials there is also a small screen with some additional information about the car, it looks slightly weird on photos but in person you'd struggle to see the edges, it's also high enough resolution that all information is legible and nice to look at. The steering wheel also has the right shape to not cover up any dials during maneuvers and normal driving, something that's surprisingly problematic in some modern cars. The wheel itself is pretty standard, it's nice in the hand and the buttons are well placed, however I found them slightly hard to use at times, it definitely lacks behind the well laid out infotainment, I found it difficult to change songs quickly, they're simply not as intuitive as i'd like them to be. However the owner told me he got used to them and it doesn’t bother him, so it probably more of a matter of getting adjusted to them. Overall there isn’t much bad to say about the interior, apart from it being slightly boring, but that's kind of the theme of the entire car's appearance. Even the sound of the engine inside isn’t amazing, however that’s not a surprise since there's nothing to write home about from the outside either, slightly disappointing considering the 6 cylinder in the M2 is an absolute pleasure to listen to, it's a real mystery to me why the M140i doesn't have a mode which gives the engine a proper sound. However thanks to the engine being pretty muted it means the car is quiet and music fills the cabin nicely, although you’ll probably have to dish out some extra cash for an upgraded sound system (which this car has). My main complaint comes with the back seats however, while the fronts are perfectly fine for short and medium length commutes, the rear passenger area is appalling, I hate being back there for more than 2 minutes and being so close to the rear axle makes the ride unbearable, making this car really only usable for 2 people at a time, unless you're driving on perfectly flat Swiss highways with midgets sitting behind you (or small children). However if you don't plan on bringing a crowd with you when you drive you'll probably be satisfied with the interior.

​