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Used Buyer's Guide Editor

Sarah Chen

Sarah joined Car Deal Expert in 2009 after seven years at What Car?'s used-car bench. She leads the used buyer's guide desk: the long, condition-focused, mechanically-literate guides our regular readers come back for. She insists on a year-engine-trim recommendation in every guide, with the specific check that catches the worst examples. Specialises in premium German used, mid-life Range Rover, and Lexus. Based in South Manchester. [email protected].

128 posts filed

4 desks covered

Recent posts

Buying Guides

Mercedes CLS C257 used buyer’s guide: best year, engines and faults

Mercedes CLS used buyer's guide: the 350d to chase, air-suspension and MBUX faults to screen, best year and how it…

Jun 3, 2026 at 10:00 am

Buying Guides

Jaguar F-Type used: which engine, the 2020 facelift, and faults to avoid

A Jaguar F-Type used buyer's guide for 2026: which engine and year to chase, the 2020 facelift, common faults and…

Jun 3, 2026 at 7:00 am

Buying Guides

Jaguar XJ X351 used buyer’s guide 2026: engine, year and faults

Jaguar XJ X351 used buyer's guide: the diesel and year to buy, the 5.0 V8 timing-chain risk, real 2026 prices…

Jun 2, 2026 at 10:00 pm

Buying Guides

BMW X6 G06 used buyer’s guide: which year, engine and the checks before deposit

BMW X6 G06 used buyer's guide: the xDrive30d Sport runs £25,470 to £34,405, plus the B57 faults, runflat costs and…

Jun 2, 2026 at 8:30 pm

Buying Guides

Volvo S90 used buyer’s guide: best engine, year and the checks

Volvo S90 used buyer's guide: which engine and year to buy, B5 vs D5 vs T8 Recharge, real 2026 prices…

Jun 2, 2026 at 10:00 am

Buying Guides

Mercedes GLS X167 used buyer’s guide: best year, engine and checks

Mercedes GLS X167 used buyer's guide: buy the 2020-2021 GLS 400d AMG Line from about £45,000, with a clean air-suspension…

Jun 2, 2026 at 9:00 am

Buying Guides

Land Rover Discovery 5 used buyer’s guide: best L462 to buy

Land Rover Discovery 5 used buyer's guide to the L462: best engine and year, known faults, real 2026 prices from…

Jun 2, 2026 at 7:00 am

Buying Guides

Lexus ES (XZ10) used buyer’s guide 2026: the quiet executive saloon at a discount

Lexus ES used buyer guide 2026: which XZ10 year and trim to buy, real UK prices near £28,700, the few…

Jun 1, 2026 at 8:30 pm

Buying Guides

Volvo XC40 used buyer’s guide 2026: best engine, year and the bills to expect

Volvo XC40 used buyers guide 2026: best engine and year, real UK prices from about £11,000, the 3-cyl oil issue,…

Jun 1, 2026 at 6:00 pm

Buying Guides

Mercedes S-Class W222 (2013-2020) used buyer’s guide: the bargain S-Class and its traps

Mercedes S-Class W222 used buyer's guide: clean 2013-2020 cars sit at £18k-£35k, but air suspension and electronics still cost flagship…

Jun 1, 2026 at 1:30 pm

Buying Guides

Audi Q8 4M (2018-2024) used buyer’s guide: the 50 TDI and SQ8 to buy

Audi Q8 4M used buyer's guide: which 50 TDI, 55 TFSI or SQ8 to buy, real UK prices from £30k,…

Jun 1, 2026 at 10:00 am

Buying Guides

BMW X3 G01 (2017-2024) used buyer’s guide: best engine, year and faults

BMW X3 G01 used buyer's guide: the best engine and year, the B47 vs N47 timing-chain myth, the EGR recall…

Jun 1, 2026 at 9:00 am