Sorry to hear the i-SHIFT is to be (could be ?)replaced on the Jazz:(
I would have thought it better to develop the system to make the system easier to live with on 'first drives'. The fault to my mind is in the mapping of the engine to give the best fuel consumption figures causing hesitation in increasing the engine speed from low (under 2k revs) in 'panic' situations.
I find that I prefer the overall control that I have over the performance to suit the road/traffic conditions by use of the gears when needed with the option of automatic control when in slow moving/stop start traffic on Motorways or in town.
I never felt in full control with the CVT box on my previous Jazz Sport despite its 'paddles'. For instance on a winding downhill road or driving round bends on country roads when trying to keep up more than a 'Sunday driver's' rate of progress.
To my mind a lazy man's car that 'enjoyed revving its head off while trying to increase speed uphill or in keeping up with traffic on Motorway inclines
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Can cruise control be fitted to a CVT box ? - its a boon for 50 mph sections on Motorways roadworks
& worth every penny
Keep enjoying Jazz driving
OUI