S4 will be diesel only with a 48-volt mild hybrid set-up
BMW 3 Series rival has received a raft of revisions as part of a mid-life facelift; prices start at £30,725
Porsche's model-year updates include minor exterior revisions, tech upgrades and new mild-hybrid engines
Lightweight M division model to shed kit, get new aero package and more power
Hand-crafted Italian super grand touring car aims for exclusivity; will make its UK debut next month
Mini will update its Mercedes GLA rival with mid-life revisions: reveal likely in the first half of next year
Human Horizons HiPhi 1
Bold new firm tabs ex-Jaguar Land Rover special projects boss to head development of SUV, due in 2021
Italian firm launches new version of extreme hypercar featuring engine upgrades and removable carbonfibre roof
Prototypes of Alpina's biggest model, likely badged XB7, appear on the Nürburgring just weeks after firm's boss hints at its existence
Renault Megane RS Trophy-R
Standard version of Renault Sport's most hardcore hot hatch starts at over £50,000, with a flagship Nurburgring lap record edition commanding £72,000
Land Rover Defender upgrade kits
Performance-boosting packs, inspired by 70th anniversary Defender V8, include engine and suspension modifications
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