Since 2019 the 1 Series has been front-wheel drive, and the F70 (2024-onwards) carries that layout on BMW’s UKL platform. The transmission tunnel is far shallower than on the RWD E87/F20 hatches, which changes how a rear centre mat sits: universal three-piece rear sets cut for a tall tunnel bunch up in the middle on an F70.
Cabin width across the back is still narrower than a Golf or A3 despite the flat floor, so wide isofix bases can foul the tunnel hump where it does exist. That matters for parents fitting a rear liner - a full-width one-piece liner is a better bet than a two-piece split-around-the-hump design.
The 40/20/40 rear seat is standard from Sport trim up and adds a centre pass-through for skis or up to 2.5 m of timber. A rear liner that continues across the centre section blocks that flip-through, so pick a set where the centre panel comes out separately if you use it.
Frequently asked questions
Do F70 mats fit the outgoing F40 1 Series?
No. The F70 shares its footwell dimensions with the F40 closely but the retention post pattern was updated, and mid-2024 BMW moved the driver’s-side floor anchor forward by ~15 mm. Always order to F70 spec, not “F40/F70 combined”.
Are all-weather liners a good match for M Sport trim?
Yes. M Sport seats sit slightly lower with more pronounced side bolsters that can trap side elastics on universal seat covers, but they do not affect the footwell or floor mat fit. TPE liners with deep channels are the sensible UK choice.