Police confiscated three cars for allegedly doing burnouts on Cambridge Rd at the wake of Te Awamutu man Kyle Ross, 21.
Waikato western response manager Senior Sergeant David Raffan said police were at Wednesday's wake after numerous reports from the public.
Ross died in a car crash last week.
The first vehicle impounded was that a passing motorist who saw the crowd and burnout marks and allegedly decided to join in.
Raffan said police impounded two more vehicles overnight as the result of information they had received.