merry exmass to one and all , Informed by daughter that I was to play father Christmas this year to the grand kids. [they live in Manchester] all parcells duly picked up wrapped from various outlets ,one more to pick up t, r, us, Scunthorpe. jumped in car, started ,into reverse let go the brakes engine revs and there is no movement,no brakes on no electronic brakes on .nothing then a loud bang., car shot backwards at full tilt,had to stamp on brakes fast .sat for a moment thought it was stuck brakes, into drive and gingerly try car ,seems ok drive down to lights ,sit there.when lights change car again ,NO GO revs rise again then again loud bang car shoots forwards [not good image of one year old LEXUS,]. anyway turned around got home phoned up hull LEXUStold the story asked me to come straight in did a full check on car brakes found nothing wrong no sticking pins ect.car running perfect went home .next day 23 car was ok sunday drove [crawled] to Manchester on m62 car faultless and has been up to now? has anybody else had or heard of this before old friend said it could be the steel band in the cvt box .any info would be good thanks all ,PS must put a big thanks for HULL lexus put themselves out for me at closing time and the offer of a curtesy car .