Rollover evaluations

Small cars

To measure roof strength, a metal plate is pushed against one corner of a vehicle's roof at a constant speed. The maximum force sustained by the roof before 5 inches of crush is compared to the vehicle's weight to find the strength-to-weight ratio. This is a good assessment of vehicle structural protection in rollover crashes.

Each model is rated based on our measured curb weight of a vehicle with typical engine, transmission, and equipment options. However, when the same model is available in a configuration over 10% heavier than the typically equipped vehicle, a separate rating is assigned.

More about how we rate vehicle roof strength

Good   Acceptable   Marginal   Poor   |   Vehicles are listed in order of performance

Model	Overall rating	Curb weight (lb)	Peak force (lb)	Strength-to-weight ratio
Nissan Cube 2009-10 models		2,833	20,569	7.26
Scion xB 2008-10 models		3,078	21,041	6.84
Volkswagen Golf 2010 models Volkswagen Rabbit 2006-09 models		3,042	15,970	5.25
Toyota Corolla 2009-10 models		2,749	14,006	5.09
Subaru Impreza wagon 2008-10 models		3,132	14,485	4.62
Subaru Impreza 2008-10 models		3,125	14,069	4.50
Honda Civic 4-door 2006-10 models		2,760	12,532	4.48
Kia Soul 2010 models		2,886	12,489	4.33