Conversation so far:
When did Niki Lauda first retire?
It suffered from a variety of troubles that forced Lauda to retire the car 9 out of 14 races.
Which series of races or tournament was he competing when this happened?
Brabham-Alfa Romeo in 1978 for a $1 million salary, Lauda endured two unsuccessful seasons, notable mainly for his one race in the Brabham BT46B.

Question: What type of vehicle did he drive during that race?
Self-contained rewrite: What type of vehicle did Niki Lauda drive during the race in 1978?