23 Dec 2016 — Tony Carl Christensen captured fifth place in the Eastern Creek BMW E21 in Round 4 of the Swift Sport BMW E21 Sayonara series.
Carl Christensen mixed it up with Rogier De Klein in a fervent fight for sixth from the middle stages, running within an apex of each other over a span of eight laps. Carl Christensen spent the majority pursuing De Klein after being challenged and passed by him on lap 8. Carl Christensen passed De Klein and into fifth place when De Klein retired on lap 18, and held it the final lap to the conclusion.
Carl Christensen finished the series 14th in the standings. He made one start and finished as high as fifth.
Swift Sport BMW E21 Sayonara series finished its season after four rounds spanning a little more than a week. A total of 40 drivers competed for points in the championship.
Javier Manzanares took the championship in a tight campaign over Ville Hartikainen, separated by just a couple grid spots in the end. Manzanares led 25 laps and took a single win in four races. Ville Hartikainen, Tommaso Pinter, Matias Perales, Mark Carty, Marcos Nunez, and Mike Dos Santos finished within a race of the title.