we have an Aygo.... ( shut it 'Totty)
07 plate, 73k miles on it,(March 07) ONLY had a clutch change because I saw a write up in a car mag about a guy with the Pug version had problems with his 106 so I enquired at Toyota who said just bring yours in and we'll replace it with a modified one for you under warranty!! oh ok
nothing was wrong with ours so why not.....
50 odd k miles it had its first front disc and pad change.... rears (drums) are original fit and still fine
then just service items and fluids etc.
not had any problems at all with it
timing chain doesnt need looking at until at least 100,000 miles either