I was involved in an accident where my 2015 Kia Soul was struck from the rear end at a high rate of speed, left the roadway, hit a concrete culver, became airborne, jumped/rolled across a driveway and went through two crosstie corner posts with no airbag deployment. My seat broke 3/4 of the way up due to impact. Unknown as to reason why airbags failed to deploy with frontal impacts and unknown as to component inspection as insurance took car away to auction. I feel that the failure of these items to deploy intensified the injuries I received in the wreck.