Just been surfing around the web and stumbled across this -
http://www.rallylights.com/team_dynamics_competition_wheels.aspx Did not know anything about these! Info from the web page.
Manufactured in the United Kingdom using Formula 1 technology, our range are the lightest aluminum wheels on the market today. We have available an extensive range of forged aluminum wheel sizes from 6.0 x 16 through to 10.0 x 24 for both competition and unique one off comncept car purposes. Our wheels are used in numerous major motorsport major motorsport series around the world.
The Pro Race 1.4G is from the Pro-Forged range. Ideal for Road Racing and Track Days. Feel the extra control and steering responce; the much improved handling due to reduced un-sprung weight will lower your lap times like nothing else.
The 16" and 17" wheels were initially designed for the LOTUS Elise, Exige and 2-eleven models, these wheels are the ultimate lightweight forged aluminum wheels. Now these wheels are available to fit a wide range of vehicles.
Sizes:
6.5 x 15, 10.8 pounds / 4.9 kilograms
7.0 x 16, 11.9 pounds / 5.4 kilograms
8.0 x 17, 16.5 pounds / 7.5 kilograms
7.5 x 18, 17.4 pounds / 7.9 kilograms
8.5 x 19, 23.1 pounds / 10.5 kilograms
Please Specify the following in Additional Instructions when ordering: Bolt Circle in Millimeters, Number of Bolt holes, Offset, Make, Model and Model Year of your Vehicle.
Just thought I would share