Table:
text: 2009 Swedish Touring Car Championship season
Races
Races
Round Circuit_Location Pole_Position Fastest_Lap Winning_Driver Winning_Team Highest_Scoring_Team Winning_Privateer
7 Ring Knutstorp Robert Dahlgren Robin Rudholm Robert Dahlgren Polestar Racing WestCoast Racing Dick Sahlén
8 Ring Knutstorp Roger Eriksson Robin Rudholm Jan Nilsson Flash Engineering WestCoast Racing Dick Sahlén
9 Falkenbergs Motorbana Tommy Rustad Tommy Rustad Tommy Rustad Polestar Racing WestCoast Racing Johan Kristoffersson
10 Falkenbergs Motorbana Tomas Engström Thed Björk Richard Göransson WestCoast Racing WestCoast Racing Andreas Simonsen
11 Karlskoga Motorstadion Robert Dahlgren Jan Nilsson Jan Nilsson Flash Engineering WestCoast Racing Tony Johansson
12 Karlskoga Motorstadion Patrik Olsson Robert Dahlgren Robert Dahlgren Polestar Racing WestCoast Racing Dick Sahlén
13 Vålerbanen Robert Dahlgren Tommy Rustad Tommy Rustad Polestar Racing Polestar Racing Viktor Hallrup

text: 2009 Swedish Touring Car Championship season
Races
Races
Round Circuit_Location Pole_Position Fastest_Lap Winning_Driver Winning_Team Highest_Scoring_Team Winning_Privateer
14 Vålerbanen Pontus Mörth Thed Björk Tommy Rustad Polestar Racing Polestar Racing Dick Sahlén
15 Ring Knutstorp Robert Dahlgren Robert Dahlgren Richard Göransson WestCoast Racing MA:GP/IPS Viktor Hallrup
16 Ring Knutstorp Patrik Olsson Thed Björk Johan Stureson IPS Motorsport MA:GP/IPS Mikael Ohlsson
17 Mantorp Park Robin Rudholm ♯ Robert Dahlgren Tommy Rustad Polestar Racing Polestar Racing Johan Kristoffersson

text: 2009 Swedish Touring Car Championship season
Races
Races
Round Circuit_Location Pole_Position Fastest_Lap Winning_Driver Winning_Team Highest_Scoring_Team Winning_Privateer
1 Mantorp Park Robert Dahlgren Robert Dahlgren Robert Dahlgren Polestar Racing Flash Engineering Johan Kristoffersson
2 Mantorp Park Thomas Schie Thed Björk Richard Göransson WestCoast Racing Flash Engineering Johan Kristoffersson
3 Karlskoga Motorstadion Robin Rudholm * Robin Rudholm Robin Rudholm WestCoast Racing WestCoast Racing Johan Kristoffersson
4 Karlskoga Motorstadion Roger Eriksson Robin Rudholm Robin Rudholm WestCoast Racing WestCoast Racing Viktor Hallrup
5 Göteborg City Race Tommy Rustad * Robert Dahlgren Tommy Rustad Polestar Racing MA:GP/IPS Andreas Simonsen
6 Göteborg City Race Fredrik Ekblom Robert Dahlgren Tomas Engström Engström Motorsport MA:GP/IPS Viktor Hallrup

Question: What is the team with the most points in the round at Ring Knutstorp where Polestar Racing is the winning team of the 2009 Swedish Touring Car Championship?