[1][2] Montin finished 2nd in the Italian Formula 3 championship in 1998 driving for Team Ghinzani with 1 win and 113 points.

He also completed his first Super GT race in the TOM's Toyota Supra, finishing 5th at Twin Ring Motegi.

For 2002, Montin continued driving for TOM's, finishing 2nd again in the Japanese Formula 3 Championship, this time with 269 points, 7 wins, 8 pole positions and 9 fastest laps.

Alongside his efforts in Formula 3, Montin also raced for the team in Super GT, once again in the Supra.

Montin did not race competitively again until 2008, when he completed a season in the Porsche Carrera Cup Italy.