As per our garage , the vehicle engines we have worked upon.
First i'll list out cars and so the in turn reflect the brand.
1.N number of indica's
3.uno and palio
4.Honda city - head work [no engine overhauls in city so far]
5.n number of 800's/omni , some old gen estilo and gypsy.
6.Some opel astras diesel ,corsa- petrol , and one chevy optra petrol .
7.some hyundai accent crdi . included member holysatans ride.
Among them i find toyota were best in qualis , regarding the date of the engine and how minimum it has suffered in the hands of DICTATOR rule. the owner a dumb ass
. i literally wanted to hit him for not caring even a .001% for his car. he was the worst owner and his car suffered less.
Then i give a thumbs up for the opel and chevy engine. i am considering both as they have many design in common.
Maruti's will serve best with some good care.
tata's will serve best with some good care , but most of tata buyers ignore them.
the thing is they both have oe spares available readily at stores.
for all other some time is being eaten up for arrangement of spares.
So as far my experience
Toyota's had best engine , city has best engine , as the couple of city that come for service has everything fine. except for one which had water pump failure.
Huge number of maruti customers and very few % wise engine failure.
Ford , have not worked on engines , but on the fact the cars that comes for service , the 1.6/1.3 are almost like a tank.
the diesel 1.8 is another work horse .
Fiat , the complex in every design. - how come they come with these ideas. the work with never ever failure in mind?
Material wise , fiat/toyota /opel has best.
technical wise toyota and fiat were best [no idea about city since have not opened them.]
Cant comment on mahindra.
1. a badly maintained new bolero run 3L kms in 1.5 years was fine even when half of its engine oil was missing and same car was fine when there was almost less gear oil in gear box.
2. Old gen scorpio engine seized at 1L kms /
Summing it all Japanese has good engine over all and less failure to max kind of abuse.