 Bought new and driving for almost 4 years - no breakdowns till date - running smooth.  Poor mileage (19-20 mpg)- time to replace the stock tires (39,000 - guess not bad).  Car used to pull towards right - aligned the wheels twice (almost everytime during the scheduled service) - they can't figure out why it's pulling like that - now they're saying it could be due to worn out tires - but the problem started after 20k miles.. I am going to put Michelin on it next week and balance the wheels once again - will see if the problem still persists.  Otherwise a great car - my first car was a sonata which also did great for 5 years.. I hope Tuscon also does well in the coming years!