Possible Clues:

• Lucas Oil competitor
• Scott Weiland band (abbr.)
• 60's-70's hallucinogen
• Longtime auto racing sponsor
• The Racer's Edge
• "Interstate Love Song" band, briefly
• Longtime sponsor of racing's #43 car
• Logo seen on race cars
• "Wicked Garden" rockers (Abbr.)
• Auto-racing sponsor