Christchurch businessman Antony Gough is "sore and bruised" after falling asleep at the wheel of his BMW and crashing down a bank.
The rich-lister rolled his white SUV near a bend on the Christchurch-Akaroa Highway on Tuesday afternoon.
The car ended up between two trees in a creek, 10km south of Tai Tapu.
Gough was hospitalised but was discharged last night.
The multi-millionaire city property owner told of his lucky escape on Facebook.