Hi my car had been driving ok when noticed a feeling of a massage chair when had foot on brake but when on acc no probs , then the misses was driving it did a 3 point turn & then cut out ,breakdown got going with start spray only for it to do it again & now I’ve got a garage saying engine is seized or gearbox & it’s going to be £10k ! Any advice thanks martyn , due to forgetting not been serviced for 2 years had reg service up until then all oil& coolant perfect levels AA said & only fault coming up was glow plug ! Thanks