BMW F20 vs F40 1 Series: Last RWD or First FWD?
F20 or F40 is the most consequential 1 Series buyer question in 2026. F20 (2011-2019) is the LAST rear-wheel-drive 1 Series. F40 (2019+) is the FIRST front-wheel-drive 1 Series. They share a name and category but almost nothing else: different platform, different driveline, different engine layout, different character. This guide covers the generational decision for UK 1 Series buyers.
Quick verdict
F40 for the modern practical buy; F20 for character, cult appreciation, and the last RWD entry BMW ever made. These are different cars sharing only a name. F40 has more cabin space, better infotainment, ULEZ from launch, lost the RWD feel. F20 (especially M140i manual) is appreciating because the successor went FWD-only. Most buyers should buy F40 for the modern practical car; enthusiasts who value RWD character should buy F20 and accept that it's the last of its kind.
Side-by-side comparison
| Dimension | F20 | F40 | Notes |
|---|---|---|---|
| Drivetrain layout | Rear-wheel drive (xDrive optional) | Front-wheel drive (xDrive optional) | Defining mechanical difference. |
| Engine orientation | Longitudinal (north-south) | Transverse (east-west) | F20 inline-mounted; F40 sideways. |
| Platform | CLAR-derived RWD | UKL2 FWD (Mini-shared) | Completely different platforms. |
| Cabin space (rear legroom) | Modest (RWD transmission tunnel) | Generous (no tunnel; more efficient packaging) | F40 wins meaningfully. |
| Boot space (seats up) | 360 litres | 380 litres | F40 ~20 L larger. |
| ULEZ compliance | Build-date dependent (post-LCI B47 / B48 yes; pre-LCI N47 / N20 no) | Yes (all builds Euro 6 from launch) | F40 wins on ULEZ certainty. |
| Manual gearbox available | Yes (M140i / M135i; rare on diesels) | Yes (M135i xDrive only manual variant; very rare) | F20 manual pool is larger. |
| Hot hatch | M140i (B58 340 bhp RWD) | M135i xDrive (B48 306 bhp AWD) | Different cars: F20 RWD straight-six vs F40 AWD four-cylinder. |
| Hot hatch 0-60 mph | 4.6 seconds (M140i) | 4.8 seconds (M135i xDrive) | M140i slightly faster despite less power. |
| Used pricing (M Sport equivalent) | £8,000-£20,000 typical range | £14,000-£30,000 typical range | F40 newer; F20 mostly depreciation-bottomed. |
F20: deeper look
F20 1 Series (2011-2019) is the last rear-wheel-drive 1 Series. RWD platform with longitudinal engine mounting; same driveline philosophy as 3 Series. M140i (LCI 2016-2019, B58 340 bhp) is the cult buy: the last RWD entry BMW hot hatch, manual or 8-speed ZF auto. M135i pre-LCI (N55 320 bhp) is the cheaper alternative. Standard 118d / 120d diesel and 118i / 120i petrol make up the volume. Pre-LCI N47 / N20 cars carry chain risk; post-LCI B47 / B48 resolves it. F20 is appreciating across specs because the F40 successor moved to FWD.
F40: deeper look
F40 1 Series (2019+) is the first front-wheel-drive 1 Series, UK launch September 2019. Built on the UKL2 platform shared with Mini Countryman, F48 X1, and 2 Series Gran Coupe. Transverse engines; more cabin space than F20 despite shorter length (4,319 mm vs F20's 4,324 mm). M135i xDrive pre-LCI (B48 306 bhp) and M135 xDrive LCI (B48 300 bhp + MHEV) are the M Performance halos. Lost the RWD feel; gained modern infotainment, MHEV efficiency, ULEZ-from-launch. The right modern entry BMW for buyers who don't have the RWD itch.
Decision logic
One filter decides F20 vs F40: do you specifically value rear-wheel-drive character? If yes, F20 is the ONLY current answer because F40 is FWD-based and the successor will be too. If no, F40 is the better modern car: bigger inside, more efficient, ULEZ-compliant from launch, better infotainment. The 'right' choice depends entirely on whether RWD matters to you. F20 M140i is appreciating fast because it's the last RWD entry BMW; F40 M135i xDrive is the safer modern hot hatch buy.
UK 2026 pricing comparison
| Scenario | F20 | F40 | Notes |
|---|---|---|---|
| 2016 F20 118d M Sport LCI, 70,000 miles | £9,000 to £12,000 | £12,000 to £15,500 (F40 118d M Sport pre-LCI equivalent) | F40 ~£3,000-£4,000 more for the same age and trim. |
| 2018 F20 M140i, 50,000 miles, auto | £19,000 to £24,000 | £22,000 to £28,000 (F40 M135i xDrive equivalent) | M140i RWD vs M135i xDrive AWD; different cars. |
| 2018 F20 M140i, 50,000 miles, manual | £22,000 to £28,000 | n/a (F40 M135i xDrive is rarely manual; mostly DCT) | Manual M140i is appreciating fast; no direct manual F40 equivalent. |
| 2024 F40 M135 xDrive LCI, 15,000 miles | n/a (F20 ended 2019) | £38,000 to £44,000 | Modern M Performance hot hatch. |
| 2019 F20 M140i Shadow Edition, 40,000 miles | £25,000 to £29,000 | n/a (F40 launched same year; no direct equivalent) | Final F20 M140i; cult appreciation. |
Recommendation by scenario
| Scenario | Pick | Why |
|---|---|---|
| RWD enthusiast / wants the last RWD 1 Series | F20 (M140i or M135i) | F40 is FWD-based; F44 and beyond will continue FWD. F20 is the last chance for RWD entry BMW. Manual M140i is the appreciating cult pick. |
| Modern daily driver / no RWD purist itch | F40 (118d / 118i M Sport) | Modern infotainment, ULEZ-compliant from launch, more cabin space, MHEV on LCI variants. The practical entry-BMW pick. |
| Family / occasional rear-seat use | F40 | Meaningfully more rear legroom (no RWD transmission tunnel). F20 rear seat is tight for adults. |
| Tight budget (sub-£12,000) | F20 LCI (B47 / B48) | Post-LCI F20 at £8,000-£12,000 is the cheapest way into a modern BMW hatch. F40 at this price point doesn't really exist yet (lowest-mileage F40s start around £13,000). |
| Hot hatch buyer | F40 M135i (modern) or F20 M140i (character) | Same use case, different character. M135i xDrive is the modern, AWD, 7DCT pick. M140i is the RWD, manual-option, appreciating-cult pick. |
| Future investment | F20 M140i manual | Last RWD 1 Series ever; last manual entry-BMW hot hatch ever. Appreciation trajectory is well-established. Manual cars holding £25,000+ in 2026 for clean examples. |
| Long-distance commuter | F40 118d | Modern aero, MHEV on LCI, refined diesel. Better motorway car than F20 thanks to revised cabin acoustics. |
Found a F20 or F40 you're considering?
Paste any listing or VIN. Bimmer.AI returns a model-specific buyer report in 30 seconds.
Run a Bimmer.AI buyer report →Bimmer.AI is designed to help you identify BMW-specific buyer risks before you travel, negotiate, or pay for an inspection. It does not replace a physical inspection by a qualified mechanic, a legal vehicle-history check (e.g. HPI Check), or independent verification of finance, stolen, or write-off status. Repair-cost ranges are indicative UK figures that vary by region, specialist, parts supply, and labour rates.
Frequently asked questions
Is the F20 or F40 1 Series more reliable?
Both are reliable but for different reasons. F20 post-LCI (B47 / B48) is mechanically simpler (RWD, no FWD-specific concerns) and has 200,000+ mile cars documented. F40 (B47 / B48) has the 7DCT clutch concern on xDrive variants but otherwise robust modular B-engine wear pattern. Pick on driving preference; reliability differential is small.
Is the F20 more fun to drive than the F40?
Subjectively yes for buyers who value RWD character. F20 has the longitudinal-engine layout, RWD weight distribution, and the option of full RWD (not just xDrive). F40 is more refined, more practical, but FWD-based; the M135i xDrive feels closer to a Mini JCW than an F20 M140i. The 'fun' question is subjective and depends on what you value.
Will the F40 1 Series appreciate like the F20?
Unlikely. F40 is a competent modern car but isn't a 'last of its kind' in the way F20 is. F20 M140i is appreciating specifically because it's the last RWD entry BMW. F40 is appreciating slowly with general market inflation but doesn't have the scarcity-of-character that drives cult buys.
F20 M135i (N55) or F40 M135i xDrive (B48)?
F20 M135i: N55 single-turbo I6 320 bhp, RWD, manual or auto, 5.1-second 0-60. F40 M135i xDrive: B48 4-cyl 306 bhp, AWD, 7DCT only (mostly), 4.8-second 0-60. F20 has character and the appreciating angle; F40 is faster off the line in real conditions and more weather-friendly. Different cars; pick on use case.
Can I tell the difference RWD vs FWD-based in daily driving?
Yes, for enthusiasts. The F20's longitudinal engine, RWD weight distribution, and absence of torque steer create a different driving character than F40's transverse engine and FWD bias (even with xDrive). Most buyers who don't specifically test-drive both back-to-back won't notice; enthusiasts will.
Is the F40 a 'real BMW' or a Mini in disguise?
F40 is built on the UKL2 platform shared with Mini Countryman. The engineering DNA is more 'BMW Group' than 'pure BMW heritage'. F40 still has BMW dampers, steering calibration, interior quality, and engine character. But the underlying platform is shared. Whether that bothers you depends on how purist you are about BMW heritage.
Are F20 and F40 the same size?
Roughly. F20 is 4,324 mm long; F40 is 4,319 mm long. Within 5 mm. Wheelbase is 2,690 mm vs 2,670 mm (F40 slightly shorter). Externally similar; internally F40 has more usable cabin space due to FWD packaging.
F20 or F40 for everyday city / London driving?
F40. ULEZ-compliant from launch (every variant), modern parking-camera tech, better cabin space for rear-seat use, smaller turning circle. F20 (pre-LCI) is mostly ULEZ-non-compliant on diesels; even post-LCI F20 has older infotainment.
How long will the F40 be in production?
LCI 2024 brought meaningful updates and signals BMW will continue F40 production through at least 2026-2027. F40 successor (presumably F50 or new badge) is expected late 2027 / 2028; expected to remain FWD-based or move fully electric depending on market direction.
How much does each cost to run in the UK?
Identical maintenance cost. BMW dealer servicing: £300-£450 per inter-mediate service on both. Independent specialists: £200-£320 on both. Total annual running cost: £400-£700 plus fuel and tax. The cars share engines, gearboxes, and chassis maintenance philosophy.