BMW 1 Series Review (2020-2023)
BMW 1 Series cars for sale
4.0
Expert review
Pros
Latest model offers more interior space than its predecessor
Cabin is made from high-quality materials
Engaging to drive
Cons
Firm ride, especially if you choose an M Sport
BMW purists may be put off by the front-wheel-drive chassis
Not as practical as a Honda Civic or VW Golf

The CarGurus verdict
The 1 Series never was the most practical family car, and the switch to front-wheel drive didn't change that, but it did bring the car into much closer contention with its rivals on that score. Importantly, though, BMW managed to retain the driving enjoyment that's always marked the 1 Series out. So if you're looking for something fun to drive, and are willing to sacrifice a modicum of practicality to get it, the Mk3 1 Series should be right up your street.
You'll also need to be aware that servicing costs on the 1 Series are probably going to be higher than those on a more mainstream model. However, if you can live with that, the 1 Series is a strong family car with plenty going for it: not least the upmarket touches you'd expect from a car wearing the BMW badge.

What is the BMW 1 Series F40?
It was all change when the third-generation BMW 1 Series, codenamed F40, arrived in 2019. Where this family hatchback had always been resolutely rear-wheel drive, the new model switched to front-wheel drive. Why should you care? Well, rear-wheel drive is traditionally the preserve of more exciting cars to drive, whereas front-wheel drive allows for better space and practicality.
In other words, this was a tacit admission from BMW that the 1 Series really needed to be more practical in order to take the fight to more conventional family hatchbacks like the Volkswagen Golf and Ford Focus, not to mention its premium rivals, the Mercedes A-Class and Audi A3. But given an involving driving experience was always what set the 1 Series apart from those rivals, BMW had to make sure it didn't throw the baby out with the bath water. Spoiler alert: it didn't.
This third-generation version of the 1 Series - codenamed as the F40 in BMW's internal gobbledygook - has since been replaced by the fourth-generation F70 1 Series, which is actually based on an updated version of the same platform. However, if you can't stretch to the Mk4, there's still plenty to recommend this Mk3 version as a used buy. Read on to find out why.

How practical is it?
Inside, the 1 Series is built from high-quality materials. If you go for the entry-level SE, however, it looks a little plain, with lots of drab, dark finishes, which is why we'd upgrade to the Sport. The design of the dashboard itself lacks the classy minimalism of the Golf's, but while it's busy, it does at least look interesting, and you don't have to upgrade it with expensive options to get it to look good, like you do in the Mercedes A-Class.
Has the switch to front-wheel drive paid off in terms of space? Yes, by and large: there's now a lot more room in the back, although not quite as much as in many of the 1 Series' more mainstream rivals. The rear seats aren't the most comfortable in the world, either, with big side bolsters at each end that push you into the centre of the car.
Storage space is at a premium, too, with naught but a few miserly cubbies up front for your odds and ends. And, while the 380-litre boot is certainly bigger than it was, it's still outgunned by many rivals, like the Honda Civic.

What's it like to drive?
The F40 generation of BMW 1 Series is still engaging to drive, with a composed, planted feel even when you're pressing on a bit. There's a slickness to the steering you simply won't find elsewhere, and it's weighted ideally. What's more, the rock-solid grip you get from the nose means the front end responds faithfully every time you turn into a corner.
There's a trade-off for this fine handling, though, and as is so often the case, it's to do with the way the 1 Series rides bumps. It's firmer than most family hatchbacks, and allows each lump or pothole to be felt just a little more, especially if you choose the stiffly-sprung M Sport models. That said, it doesn't cross the line into outright discomfort, so if you value that sporty driving experience, you probably won't mind.
We reckon the best engine in the range is the 1.5-litre three-cylinder petrol unit, badged 118i. It's responsive around town and gutsy on the motorway, while also offering very respectable fuel economy figures.
If you need an even more frugal 1 Series, however, there are three diesel engine options to choose from, while for real petrolheads, the exhilarating petrol-powered M135i xDrive hot hatch sits at the top of the range.

Technology, equipment and infotainment
The F40 1 Series comes with an 8.8-inch central touchscreen infotainment system and analogue dials; you also get Apple CarPlay, and while Android Auto wasn't available atthe outset, it was added later. You can upgrade this setup to a much sleeker one, with a big 10.25-inch screen; this package also gets you an upgraded hi-fi system from Harman Kardon, and a TFT display in place of the dials. The latter isn't as slick as rivals' versions, though, and because it's quite small, it ends up looking rather crowded.
Whatever infotainment system you go for, it’ll be based on BMW’s iDrive setup. This is good news, because as well as being packed with features, iDrive is one of the easier infotainment systems to navigate.

BMW 1 Series running costs
As we've just mentioned, the 116d is the most frugal 1 Series of all; it should see around 55-60mpg on average. However, as it'll set you back a little more than the petrol-powered 118i to buy, you'll want to work out whether the fuel savings will make up for its extra cost before taking the plunge.
The 118i should see about 40-45mpg on average, by comparison, which is in fact bettered by all the diesel models, but given how much pricier they are, it's unlikely they'll end up costing you less in the long run. If it's an M135i you're after, bank on around 30-35mpg, which is still a pretty respectable figure for such a potent machine.
Whichever 1 Series you choose, you'll have to be prepared for the fact its upmarket badge means it'll cost you more to buy than most of its rivals.
BMW's servicing costs are generally cheaper than those of Mercedes, and on a par with - if not slightly pricier than - Audi's. BMW also offers you the chance to pay for your servicing using a monthly service plan at £20 a month for 36 months, which means each annual service should average out at £240.
All 1 Series engines feature a timing chain, which shouldn't need changing for the duration of the life of the car, so you don't need to worry about costly timing belt changes every few years.

BMW 1 Series reliability
In recent years, the Big Three German prestige brands - BMW included - have been rather disappointing in this area. Take a look at pretty much any of the various reliability and customer satisfaction surveys doing the rounds, and you'll have found Audi, BMW and Mercedes featuring towards the bottom of the standings.
The latest edition of the What Car? Reliability Survey paints a slightly different picture, though. Sure enough, Mercedes and Audi are still down there, finishing in 22nd place and 24th place, respectively, out of the 31 carmakers considered overall. However, BMW has has elevated its performance all the way up to 8th in the table, and that's a massive improvement on its performance of the previous few years.
The news is even better for 1 Series owners. This third-generation version came a very impressive 3rd out of 26 models considered in the Family Car category of the same study, which is a splendid result.
Like most manufacturers, BMW only offers a three-year warranty, so it's questionable whether any used example you buy will have any cover left. You certainly will on cars less than three years old, though, because there’s no mileage cap on BMW’s cover, like there is with many other brands.
- Most 1 Series of this generation come as standard with a six-speed manual transmission, although an eight-speed automatic could be specified as an optional extra on every engine. Two versions got the automatic gearbox as standard, though: the M135i and the most powerful diesel, the 120d. Both of these models were also available with four-wheel drive; the M135i had it as standard, while it was an option on the 120d.
- The fastest 1 Series is the M135i, and it's a cracker of a hot hatch. It comes with xDrive four-wheel drive and a slick eight-speed automatic gearbox as standard, and while it isn't quite as exhilarating as a Honda Civic Type R or Hyundai i30 N, it's incredibly user-friendly and very easy to drive quickly. Don't be fooled by the badge, though; it's fun to imagine a relatively small hatchback with a beefy 3.5-litre engine, but in reality, the M135i is powered by a 2.0-litre turbo. Still, that isn't too much of a hardship when you find out it develops a whopping 302bhp.
- If you fancy a fast and fun 1 Series but don't want to stretch all the way to an M135i, BMW also offered a slightly cooler version called the 128Ti that's designed to compete with the likes of the VW Golf GTI. Featuring revised suspension and a 2.0-litre turbocharged petrol engine that powers the front wheels only, the 128ti produces 261bhp and can get from 0-62mph in 6.1 seconds.
- For most buyers, we'd recommend the 118i Sport. It's a great all-rounder with the touches of class you might expect from a car like the 1 Series, and a willing engine that'll be plenty quick enough for most buyers.
- If you're after something more exhilarating, though, there's only one place to look: the M135i's stonking pace and rock-solid handling make it an excellent choice. Just keep in mind that it doesn't come cheap.
- If you'd like something with four-wheel drive, but don't need the expensive running costs of the M135i, the 120d xDrive is worth a look. Four-wheel-drive family hatchbacks like this are rather rare, so if that's what you're after, it's a good option. Just keep in mind that it doesn't come cheap and the four-wheel drive system dents fuel economy a little.
- And if you're buying on a budget, you'll want to look at the 116d SE. It's the cheapest diesel model, returns impressive fuel economy figures, and has the lowest insurance group of any 1 Series.

