No, the vast majority of chasers do not have such modifications to their vehicles, and with the exception of custom-built rigs like Reed Timmer's, these would d

No, the vast majority of chasers do not have such modifications to their vehicles, and with the exception of custom-built rigs like Reed Timmer's, these would do nothing to prevent harm during a tornado encounter. The point is that the stormchasers are biased towards chasing in environments where all of these antecedents are there. You don't see much chaser videography from, say, the Ozarks or into the SE because the terrain is far more difficult and less amenable to good footage. These things also make it more dangerous. SW Kentucky would be a terrible place to chase.