1. Roll over raing: Tucson 2006 is among the highest 4 stars. see infor in the link:
http://www.vehicle-injuries.com/rollover-ratings.htm
2. Fule economy, real experience: 2006 Tucson 4 clinder, automatic, (2.0L)City 11L/100 KM, City and Highway: 10L/km. It is not bad for a SUV. I used to drive a new Honda Civic (1.8L)for 4 years which is the most fule efficient car as all say, it's around 10L/100km in the city. City and Highway around 9.5L/100KM. You can read the related real experience of others at:
http://autos.yahoo.com/newcars/hyund...IRWiqehOwPFcsF
Have fun!