Which car is more safe? Cefiro, Camry, BMW 320i

From the following comparison, we found that the Altima and the Camry are safer than the BMW 3-series in overall crash protection.
Nissan Altima: 5-5-5-5-4
Nissan Maxima: 5-4-4-4-4
Toyota Camry: 5-5-5-5-4
BMW 3-Series: 4-4-5-5-4

First number indicates Frontal Crash rating for Driver based on risk of head and chest injury
Second number indicates Frontal Crash rating for Passenger based on risk of head and chest injury
Third Number indicates Side Impact Crash rating for Driver based on risk of chest injury
Fourth Number indicates Side Impact Crash rating for Passenger based on risk of chest injury
Fifth Number indicates Rollover rating
According to the National Highway Traffic Safety Association from the United State, the figures above are the crash test rating of the 3 cars you mentioned. The higher the number, the better the crashworthiness (i.e., safer for driver and passengers). Please note that there are no Cefiro and 320i in the US, so we are going to use Nissan Maxima and Nissan Altima for Cefiro as they are sharing the same platform, while we are going to use 3-series as a subject.
I would like to state some facts to correct tzefunglam as well. 320i is actually the lightest of the three cars at 1425kg; Camry=1470~1610kg depends on model; Cefiro=1525~1545kg depends on model. Weight is not the only factor when considering crash protection.
To look up on crash test rating on other cars, you can go to the webpage that Paul Chung listed www.safercar.gov, the European Standard does not have info on Camry and Cefiro, but you can check here for the 3-series testing http://www.euroncap.com/tests/bmw_3_series_2005/225.aspx

Please browse this website, you may find out the safety of most cars.
http://www.safercar.gov/

2007-12-28 21:41:47 補充：
Cefiro is also called Teana or Maxima in other countries.

of coz bmw.....
more expensive.....$400k or above
german car....usually more safety......
cefiro and camry...... $200-300k only......
lighter.....
camry is safey than cefiro.......