It's a test and tune from 4:30-7:30 central (5:30-8:30 eastern). Its $60, very casual.

http://www.gingermanraceway.com/even...g-test-tune-92

Come on out for an evening of fun at Gingerman!!
Evening test and tune is a three hour long practice session. There is ABSOLUTELY no racing on these evenings. Evening test and tune is available to all those who want to enjoy driving a sport car in a controlled environment. This is not racing, other major organizations exist for such purposes. We expect that you understand and can follow our rules in order to conform to a safe and fun environment.
Time: Wednesday and Thursday evenings 5:30-8:30pm MOTORCYLES PERMITTED WEDNESDAY EVENINGS ONLY
Cost: $60.00 per driver
Place: Right here at Gingerman Raceway located in South Haven, MI 61414 Phoenix Road

Rules and Regulations:

Waiver must be signed at time of arrival
There are no passengers allowed on the track unless approved by management
You must be wearing a helmet at all times while driving on the track
Helmet must be approved by Snell and DOT manufacture date 2000 or newer, each helmet WILL BE INSPECTED
Bike riders must wear one piece leather suit or two piece zip up with leather boots and gloves.
Vehicle must have factory seat belts or race harnesses in place for all occupants
Convertible vehicles must have a roll bar, roll hoop, or roll protection in place
Previous track driving experience is required
Long sleeve shirt and pants required
If you suspect anything wrong with your vehicle while driving on the track, GET OFF A.S.A.P or drive off into the grass
FOR DETAILS, PASSING RULES AND FLAGS SEE OUR 'EVENING TEST AND TUNE RULES AND REGULATIONS' PAGE ON OUR WBSITE UNDER 'REGISTRATION'