These days? Few. In the 1990s, more. Except in the highest speed crashes frontal airbags are mostly redundant for belted in passengers (the first S in SRS is

These days? Few. In the 1990s, more. Except in the highest speed crashes frontal airbags are mostly redundant for belted in passengers (the first S in SRS is there for a reason), especially in this age of seatbelt pre-tensioners. Side curtain airbags are far more helpful these days.