Stop in for a cup of coffee

It wasn’t the broken belt that killed him. It was the extreme g-forces to his head and neck whipping that did. The investigation resulted in the now mandatory head and neck restraint system.

PLUS: AUTO RACING; Earnhardt's Death Not Linked to Seat Belt
I'm no expert, but...

"NASCAR officials said Friday that Earnhardt was found with a broken seat belt after the wreck in which he was killed instantly."

ESPN Classic - Altered belt revelation stuns drivers

Daytona Beach police on Friday released photos of the controversial seat belt that NASCAR says broke apart when racing legend Dale Earnhardt's car slammed into the wall on the last lap of the Daytona 500.
Police reveal shots of Earnhardt's broken seat belt

"Dale Earnhardt’s broken seat belt was one of many factors that contributed to the death of the auto racing great, NASCAR said Tuesday in releasing its report on the wreck. The six-month investigation found the seat belt, the collision with another car and angle and impact in which Earnhardt hit the wall all played a role in the Feb. 18 crash on the final lap of the Daytona 500."
NASCAR releases report on Earnhardt crash, concludes seat belt was broken