So I know that this has been discussed to death in these forums but I have read most of the threads and my situation sort of sounds similar but isn't. a. Flat Spot: I have noticed that specially in 1st gear half throttle acceleration, just as I reach around 2500 there is a very noticeable gap in acceleration for a second and then it resumes with a lesser rate. b. Bucking at Low speeds: Also since last week the car seems to have started 'bucking' as many threads put it and finally I know what they meant. Happens mostly on part throttle, half clutch situations when crawling in London traffic. The acceleration is quite jerky and not linear making me look like a Learner! EGR I have cleaned a few times, checked front and back plugs (2 of them at random) and they look fine so just wondering what could it be. The air filter is about 5000 miles old so don't suspect thats the cause. c. Noise Vibration Harshness Although there are no knocks or bangs in the suspension, on bad surfaces the car seems to let a lot of vibration in. I have driven a lower mileage Jazz of same age (53 Plate) and it felt much more compliant and softer than my one on same 15" alloys so I was wondering if I can do anything to improve the NVH?