Toca3? You mean Toca Race Driver, from 2003? The series titles wasn't named after numbers, after the second part. Or to be more detailed, they has a messed up numbering: TOCA, TOCA2, TOCA Race Driver, TOCA Race Driver 2, TOCA Race Driver 3.
And wasn't the series named "V8 Supercars Racedriver" in Australia?
I had a big TOCA2 fanpage, in the beginning of the 2000's.
Made also a lot lot lot of liveries for TOCA cars.
Which cars you've converted?