The Best New Car Warranties in the UK (2025 Guide)

When you lease a new car, peace of mind is just as important as performance, styling, or running costs. That’s where the manufacturer warranty comes in. A strong warranty can save you money and hassle if things go wrong, covering unexpected repairs and giving you confidence over the years ahead.

But not all warranties are created equal. Some brands go well beyond the standard three years, making them particularly attractive for long-term reliability and value. Here’s our guide to the best new car warranties available in the UK right now.

Kia – 7 Years / 100,000 Miles

Kia has built a reputation on its industry-leading 7-year warranty, which covers you for up to 100,000 miles. What makes it stand out is its transferability if you sell the car, the new owner keeps the balance. That helps boost resale value as well as peace of mind.

Best for: Drivers planning to keep their car for a long time, or anyone who wants strong resale protection.

Lease one here : Kia

Hyundai – 5 Years / Unlimited Mileage

Hyundai offers one of the most generous unlimited mileage warranties in the UK. Their 5-year package covers unlimited miles, which is perfect for high-mileage drivers. Add in roadside assistance and annual vehicle health checks, and it’s one of the most complete packages on the market.

Best for: Company car drivers or anyone who racks up serious miles.

Lease one here : Hyundai

Toyota – 10 Years / 100,000 Miles (with servicing)

Toyota’s warranty is one of the most flexible. All new Toyotas start with a 3-year manufacturer warranty, but if you service the car at an authorised Toyota centre, the cover extends by 1 year/10,000 miles each time, up to a maximum of 10 years or 100,000 miles.

Best for: Drivers who plan to service at the dealer and want ultra-long coverage.

Lease one here : Toyota

Lexus – 10 Years / 100,000 Miles (with servicing)

As Toyota’s luxury brand, Lexus offers the same warranty structure. That means you can enjoy premium cars with the reassurance of up to a decade of warranty cover, provided you maintain servicing within the network.

Best for: Premium car buyers who want long-term reliability.

Lease one here : Lexus

MG – 7 Years / 80,000 Miles

MG matches Kia with a 7-year warranty, although it caps mileage at 80,000 rather than 100,000. Still, it’s a strong offer and makes MG’s line-up of affordable EVs and SUVs even more attractive.

Best for: Budget-conscious buyers looking for maximum cover on a great-value car.

Lease one here : MG Motors

Other Honourable Mentions

• Honda: 3 years / 90,000 miles (higher mileage cap than most). LetsTalkLeasing

• Subaru: 5 years / 100,000 miles. LetsTalkLeasing

Why Warranties Matter for Leasing

If you’re leasing a car, warranty length often lines up neatly with the lease term. For example, a 3-year lease on a Toyota or Hyundai means you’re covered the entire time with no worries about repair bills. On longer leases, brands with 5- or 7-year warranties give you that extra reassurance.

What if my lease is longer than the warranty period?

If your lease happens to be longer than your warranty period you have a couple of options:

• Ride it out but note any issues with the vehicle will be your responsibility to repair

• Pay for an extended warranty using a provider such as Assurant

Do electric vehicle batteries have longer warranties

Yes electric vehicle (EV) batteries usually come with longer warranties than the standard new car cover. That’s because the battery is the most valuable and critical component in an EV. Here’s how it typically works in the UK:

Standard New Car Warranty vs EV Battery Warranty

New car warranty (covers most components): usually 3–5 years, depending on the brand.

EV battery warranty: typically 8 years or 100,000–150,000 miles (whichever comes first).

Examples of EV Battery Warranties (UK, 2025)

• Tesla – 8 years / 120,000–150,000 miles (depending on model), guaranteed to retain at least 70% capacity.

• Hyundai – 8 years / 100,000 miles on EV and hybrid batteries.

• Kia – 7 years / 100,000 miles (battery covered within its industry-leading vehicle warranty).

• Nissan Leaf – 8 years / 100,000 miles, capacity guarantee down to 9 bars (approx. 70%).

• BMW i models – 8 years / 100,000 miles.

• Mercedes EQ range – 8 years / 100,000 miles.

Why Longer Warranties?

• Battery cost: EV batteries can cost £5,000–£15,000 to replace. Manufacturers know buyers worry about this, so the warranty reassures customers.

• Durability: Modern lithium-ion packs are designed to last 10–15 years, so carmakers are confident offering long cover.

• Resale value: A long battery warranty helps used EVs hold value better.

Final Thoughts

When comparing cars, don’t just look at the monthly cost or the spec sheet. A strong warranty can save you hundreds of pounds and give you real peace of mind.

At LetsTalkLeasing, we help you find the best lease deals on cars with industry-leading warranties so you get great value today and reassurance for tomorrow.

Browse our latest car leasing offers or call us on 0330 056 3331 to secure your warranty backed car lease today!