Hi - heres my 2 penneth - i have 2013 2.2icon D-4D 6 speed manual....I used to have 2.0 litre petrol 5 speed 2006 xt3 manual.. both different cars in my experience ; the older one super smooth petrol ; give or take 40 mph locally or on a run...smaller , slightly higher , squatter car and more stylish in my opinion....but slightly underpowered on hills or towing......Newer car very roomy longer and much more powerful than t'other with cruise control and a few more goodies. again around 40 mpg.. I feel it has lost the looks and my preferred style of the older models ... but it is much more refined alround and like most other cars of its ilk.....If I could I would have one of the 3 door they used to produce brought up to date - i would think they'd sell in their droves!!!!! I have no experience of these in auto but manually as a near new car goes I am very happy........Regards fromPaul..