1. do not knwo the market in ir: buy a copy of car, they will have a lot of useful info in the ads.
2. yes, just as petrol ones. watch out for service history,control arm bushings, otherwise expect few gremlins.
3. the 320 4 cylinder diesel is widely recognized as top notch, lile;y even better than the recent honda 2.2 liter. a superb engine, economical, powerful, modern, indestructible etc, etc.
4.car will tell you
: oil every 10k, nothing really needed for 100k. depending in mileage, see whether h20 removal system and fuel (low presssure) filter was checked.
imho, it is one of the best cars on the road today.