Complex sentence: Allison was elected to the International Motorsports Hall of Fame in 1993, the same year that his son Davey died following a helicopter accident at Talladega Superspeedway.
Split into simpler sentences: Allison was elected to the International Motorsports Hall of Fame in 1993. Later that same year, his son Davey was killed in a helicopter accident at Talladega Superspeedway.