What used BMW 4 Series sports will I get for my budget?
The market for BMW 4 Series Convertibles starts at about £15,000, which will buy you a car from 2014 or 2015 with close to 100,000 miles on the clock. That makes it about £2,000 more expensive than an equivalent 4 Series Coupé.
You’ll find a better selection of cars if you stretch your budget to £18,000, where there’s a good range of low-mileage four-cylinder models. For something with a six-cylinder engine, you’re looking at about £21,000 for a 430d diesel or £23,000 and upwards for a 435i petrol.
Whatever engine you decide on, it’ll probably come in M Sport specification, which accounted for the vast majority of 4 Series Convertible sales. The other trim levels are SE, Modern, Sport and Luxury, although all but Sport were dropped over time.
For a post-facelift car from 2016, you’ll need to spend about £27,000.
How much does it cost to run a BMW 4 Series sports?
For the lowest running costs, you’ll need a 420d, which returns as much as 60mpg in official economy tests. In real-world driving, owners manage about 45mpg, whether the car is fitted with a manual or automatic gearbox, and benefit from paying as little as £115 per year in road tax.
A 430d is also reasonably affordable to tax, at £135-£150 per year, while a 435i is £240-£280 per year. In terms of fuel economy, these cars will manage about 40mpg and 30mpg respectively.
When it comes to servicing, it’s worth looking for an example that was ordered with BMW’s five-year inclusive servicing package, which is transferable between owners. There are no fixed service intervals as such (the onboard computer will tell you when it’s required) but, as a guide, you’ll need to factor in a visit to the workshop once a year to keep things running smoothly.