25th Oct 09 Fitted green box to Kia Rio Sport very easily. Came set on 5 with little effect. On D the car flew-pulled 5th from 35 smoothly and was very refined and shows 64 mpg on the trip–always 10% over.the car is still far faster, smoother with much less lag than standard. Not happy below 42 in 5th and showing 62 mpg on the trip.Tempted to ask my engine management specialist to see if the system can be retuned to accept D.Scrapped in a Primera GT with 150bhp for this and this Kia is considerably faster with much less effort.Glad I got the Sport with uprated brakes and chassis.Great value box and so easy to fit. — David C