all removable body panels should be fiberglass or carbon fiber (big bucks).
t-tops can be lexan, weighs much less than glass.
remove all hardware from door, including locks, handles and windows, then weld them shut and put a lexan window in the passenger side with a window net in the driver's side.
remove everything from the interior. remove dash and replace with lightweight aluminum. get rollbar installed. get lightweight aluminum racing seat.
