BMW 3 Series finance.

There is no single right way to finance a BMW 3 Series. Hire purchase spreads the whole cost across the term and hands you the keys outright at the end, with no mileage limit and no condition inspection waiting for you. PCP defers a chunk of the value into a final balloon payment, so the monthly figure is lower for the same car, but you only own it if you pay that balloon — and you agree a mileage cap up front. A personal lease is a long-term rental: fixed cost, no ownership, hand it back at the end.

• Choose HP if you cover high mileage, keep cars for years, or want the BMW 3 Series to be yours with no end-of-term conversation.
• Choose PCP if you like changing car every three or four years and your annual mileage is genuinely predictable.
• Choose a lease if you want one fixed monthly cost and are happy never owning the car.

Which BMW 3 Series you finance matters as much as how you finance it. Our pick of the range is the M340i / 340i (B58 straight-six) (28–34 mpg) — one of the great modern engines — smooth, torquey, well-proven. The 3 Series engine to buy if the running costs suit.

Be more careful with the 316d / 318d / 320d (N47 diesel) and 320i / 328i (N20 petrol). A finance agreement locks you into a car for years, so an engine with a known weak point is a bigger commitment than it looks on a test drive — and repair bills land on top of the monthly payment, not instead of it.

On trim, SE is the sweet spot (Baseline). The comfort-oriented trim — softer suspension, smaller wheels, better ride on UK roads. Rarest used, and the underrated pick. On finance, the difference between two trims is usually a few pounds a month — far less than the resale gap between them three years later.

The electrified versions of the BMW 3 Series comply with UK clean air and low emission zones, which matters if you drive regularly in London, Glasgow, Edinburgh or a charging Clean Air Zone city. Over a four-year agreement, avoiding daily charges frequently outweighs a slightly higher monthly payment.

Set your mileage honestly. Under-declaring on a PCP or lease to shave the monthly payment is the most expensive mistake buyers make on a car like this, because excess mileage is charged per mile at the end and it is not negotiable once the contract is signed.

For this model we would buy from a good independent specialist. For any pre-2015 F30 with N47 diesel or N20 petrol, an independent BMW specialist gives you a materially better pre-purchase inspection than a general franchised sales desk — they know exactly where to listen and what history to demand. For nearly-new G20 stock, a BMW franchised dealer is fine and often the source of a competitive PCP quote.

Lenders have their own opinion of the car too. Most mainstream UK panel lenders want the vehicle to be under roughly ten years old at the end of the agreement, under about 100,000 miles, priced in line with trade guides and bought from a VAT-registered dealer rather than privately. A BMW 3 Series that is well within those limits opens up more of the panel — and a wider panel usually means a better rate.

• Get the settlement figure in writing if you are part-exchanging a financed car.
• Check the finance quote is on APR, not a flat rate — flat rates always look cheaper than they are.
• Confirm the mileage allowance and any excess-mileage pence-per-mile charge before signing.
• Budget for insurance, tax, servicing and tyres alongside the monthly payment, not after it.
• A pre-2015 3 Series diesel or N20 petrol without preventative timing-chain history is worth £1,500–£2,000 less than the equivalent car that has been done. On an M Sport, remember you're not competing with the badge — you're competing with dozens of near-identical cars, so drive on price and be willing to walk.