Cromwell Street Sprints organising committee member Garry Morton said the event attracted racers from around the South Island.
This year the event was being capped at 55 to ensure the day would run smoothly, he said.
There would be some new drivers and different cars, some of whom could take out the top spot.
Racers would take part in three, one-lap timed rounds of the track, with the top-10 racers completing a fourth shootout round.
A wide variety of cars would hit the track, with most being purpose-built sprint racers, he said.
Spectators could view the race for free from Gair Ave, Pinot Noir Dr and Cemetery Rd.
Estimating spectator numbers would be hit and miss as in the past they had crowds ranging from 400 to 800, Mr Morton said.
"A good day out would mean 400 spectators," he said.
The first car would make its run at 9.15am and the top 10 shootout would be finished by about 4.45pm.
The tight corners of the circuit made would make for an entertaining event, he said.
