The costs are clear and easy to obtain a quote. My 2021 M3 will be £2428 for an additional 4 yrs/50k miles. However, the list of exclusions is extensive and I think I'd need convincing it was worthwhile. The motor and battery are covered under the Tesla 8 yr 120k mile warranty. Looking through the T&C, exclusions include e.g.
" brake pads/linings, brake rotor, suspension alignment, wheel balancing, air conditioning lines, hoses or connections, battery testing, fluid changes, appearance care for the interior and exterior (such as cleaning and polishing, dent removal, rectifying upholstery wrinkles, scrapes, scratches, or blemishes, wear and tear items, road rash, and the like), filters and wiper blades/inserts; and – Other maintenance services and parts described in Tesla’s maintenance schedule for the covered Vehicle. Other parts not covered: – Bright metal, sheet metal, bumpers, ornamentation moldings, carpet, upholstery, paint, air spring modules and shock absorbers/dampers, 12V battery, battery cables, key fob batteries, lenses, light bulbs, headlights and sealed beams, glass (e.g., windshield), wheels, interior trim, body seals and gaskets (e.g., weather stripping);"
So headlights, shock absorbers, seat materials, interior trim and other items we see regularly listed as changed under warranty by Tesla are not covered under this policy. It's £607 per year, so the question is, would you have spent that much on repairs anyway? I'm trying to work out what is still covered. I guess computer units and screen?