It's not that hard to defeat a british car. All you do is set an open can of 10w30 on the pit wall and after 5 laps the ol bloodhound smells it and goes in.
My Nissan LOVES that stuff.
especially when I still had my valve cover recir'd into the intake. smoky goodness on every left turn until the car was 1/2 quart low.
Corner workers loved it when I fogged for mosquitos my first session of every track day.