Well I have heard of some surprising (read:Jaw dropping/eye popping) figures clocked by cars,but will discuss only those i know of myself.
1)Maruti 800 Dx '02--Belongs to a friend,has done 425000kms approx with no repairs yet.The car still nudges the other side of 100kmph on speedo but has become quite unrefined and loud.The only other problem is that it needs oil change relatively more frequently.
2)Indica DLS V2 '00--Belonged to dad's friend.Sold for 60000rs. at 3.5 lakhs kms.The engine was overhauled once at 2 lakh kms.
3)Daewoo Matiz '00--belongs to a friend and a fellow teambhpian. 1.3 lakh kms. No work on engine.Regular service only.He rips it alot and still nudges 130kmph on the speedo once in a while.
4)Hyundai Santro 1.1 '04--belongs to a friend and yet again a teambhpian. 1.5 lakh kms on odo.Car in pristine condition.Has been well maintained and looked after very carefully.
5)Maruti 800 '97--belongs to our family.My first car,got it when it had 85k kms on odo.Has done 1.2 lakh kms now.Ripped and abused by yours truly.Engine still very smooth.Gets serviced at 10000 kms.Performed decently 18 months back during a trip to Garhwal.took us through bad/no tarmac at 12000 fts.!! Thrashed and ignored now.Was operated at just 100ml of engine oil.Still no sign of losing in terms of performance and smoothness.The panels vibrate like hell,engine still as smooth as new.!! One of the most robust cars in my books.Love it alot for its never say die attitude.(touch wood)
6)Maruti Esteem VX '02--done 95000 kms.Regularly serviced.Mostly used in the city.Still no signs of losing power.Engine as good a performer as it always was.However I am not surprised because the car has been looked after very well.
7)Maruti Omni '95--done 3 lakh kms.Belongs to us,mostly used by drivers and for transportation from farms to the city.Hardly driven it so can't say about engine behaviour.Engine Overhauled at 2.5 lakh kms (for just rs.5000!!

) Mechanic says will easily clock 1 lakh kms more.
Fingers Crossed.
8)&9)Our maruti baleno and maruti sx4,done 25k and 10k kms respectively.Baleno's engine has opened up nicely,what a terrific performer it is,dad's sx4 is mostly chauffeur driven,and i find it quite unrefined at some ranges.However these have hardly clocked amy mileage,and from our excellent experience from maruti suzuki cars,quite hopefull these may last long as well.
10)And i almost forgot this,neighbours OHC Exi '01----clocked 1.5 lakh kms,but as it is almost always tharshed,costed him around 40k bucks for work on engine and suspension recently,but that engine is still a delight to rev.Doesnt drink much as well.