Original: In the 1970s and 1980s , Brabham introduced innovations such as the ` fan car ' , which won its only race before being withdrawn , in-race refuelling , carbon brakes , and hydropneumatic suspension .
Simplified: In the 1970s and 1980s , Brabham introduced innovations such as the controversial but successful ` fan car ' , in-race refuelling , carbon brakes , and hydropneumatic suspension .