The 2.2 diesel comes in 2 tune :
150hp/315nm
175hp/350nm
There is no 2.5D, only 2.5 petrol turbo for the new upcoming CX9.
In normal driving, the torque curve is more favourable to the driver as the bulk of the torque comes in between 2000-3000rpm without the need to change gears, where most overtaking are required. So just step and go, quite effortless decent acceleration. Do you own a diesel vehicle before or feel the torque kick of a modern diesel car?
On a normal naturally aspirated car, it takes rather long to wait for the torque to arrive at higher RPM range of 4000 and above (unless you drop a few gears) or you have a turbocharged car.
Diesel engines are made more robust than petrol versions as they have to deal with the higher compression and torque when the engine is in operation. So they are technically more tahan lasak.
The expensive maintenance mainly on the diesel particulate filter (DPF) exhaust after treatment (which our regulating authorities are not imposing and also from crap quality diesel) which can get choked off from too frequent short runs, stop go traffic or cold engine runs (which most of us face daily in malaysia). That one cost quite a lot to replace when fully choked off. Need to have at least once highway drive a week to let the DPF regenerate/burn off the soot accumulated.
Another killer is the dual mass flywheel (DMF). A lot of the german marques' DMF die starting as short as 50k km. Some last longer but will still eventually fail longer down the road. Most of the owners (i refer to UK/Europe) lease diesel vehicles as mostly after 3/4 years, the problem starts and they change their lease to a newer car to avoid the headaches. Also the urea (or AdBlue) that needs to be refilled after 2 or 3 fuel pump visits. Without all these, the diesel exhaust is extremely polluting. Imagine all the diesel exhaust crap in the air we breathe in daily considering that our government is not enforcing emissions control and the combination of crap quality diesel and old age engines running around with plumes of dark clouds. Wonder you ever heard the term "rolling coal"?
I see. I never heard of the term rolling coal but do search for it.
As for what you say, diesel engine might need more maintenance and also it's not good for short distance run.