I've done some number crunching. Firstly, apologies to Branko ... I've modified your spreadsheet!

I've included the results for the top 6 teams ... and as Andrew has noted, 4 of them are Alfa teams!

I've added what I call the "Bonus" Factor: Being the number of bonus laps gained less broken laps as a percentage of the laps actually driven (not including changeover laps).

Just check out JPS driver 43 Geoffery Lawerence: 49 laps driven, 25 bonus laps, and only 2 broken! This gives a "Bonus" factor of 46.94%. That's pretty impressive!

Scuderia's Peter Axford isn't too far behind: 51 laps driven, 28 bonus laps, 6 broken giving a "Bonus" factor of 43.14%

Victoria's best is Branko with 40 driven, 16 bonus, 3 broken; "Bonus" factor of 32.50%

This just states the obvious: Bonus laps, bonus laps, bonus laps; and no broken laps. Of course the above could be improved if safety car laps didn't get in the way!

By the way, have you seen driver 192? 56 laps driven, 2 bonus laps, 45 broken laps! "Bonus" factor: negative 79.63%!