Am planning to buy an MB190 baby benz but am not really that familiar with the maintenance & upkeep cost. All I know is what I was able to gather on the net...your comments please:

1. based on my research over the net it seems better to get a diesel variant, it's a bit more expensive but the fuel economy, engine durability and maintenance cost might be cheaper in the long run...

2. am hoping to get a 2.5 turbo model but I don't see any sellers, all i can find are 2.2 variants. Research shows that the 2.5 turbo variant's engine is really durable and can even run on veg oil! is the 2.2 as dependable as the 2.5 and can it also run on veg oil?

3. the 2.0 version is rated as "really slow" by owners, I hope the 2.2 version wouldn't ride the same way...sana maka 0-100kph under 12-sec naman. is it possible to install a turbo on the 2.2? any recommended shop in the QC area?

4. maintenance cost...parts susceptible to wear and tear such as bushings, CV & ball joints, tie rods and brake pads - how expensive are these and am thinking since MB naman then it should have better quality than japanese car parts? am willing to spend, as long as it lasts. My worry is that mahal na nga madali pa masira. I don't want to buy a car that is hard and costly to maintain.

thanks in advance to all who would share their knowledge.
I hope to return the favor someday.