Movement is difficult to predict. at 15 mph significant upshifting. problem occurs in coasting at 20 mph down to 10 mph. as you decelerate car lurches into fisrt gear. making brake distance impossible to predict. causing accidents at traffic stopping points. also significant lurching at 15mph, 40mph and then after 70mph. car is an automatic and drives like a manual, is the primary concern and stopping distance is unpredictable. (transmission issue after three services in the first year) service secretary/manager argues that automobile is fine without test driving. mechanic joined in test drive and quickly noted that a problem exists yet fix was only temporary. *ak