http://www.publicdata.com has the records.
Wisconsin DMV
Records in this database: 5814861
Last database Update: 2007-03-31-00.0
Data contained herein pertains to vehicle registrations, license plates, VINs, and owner information. Owner information includes Name, Street Address, City, State, and Zip Code. Vehicle registration information includes Plate Number, VIN, Make, Model, Type, Expiration Date and numerous other data items. No insurance information is contained in this database. This database may be searched with full or partial license plate number or full or partial VIN. Note: Current records we are receiving do not have license plate data available. VIN data is still provided, however.
The base file for this data was created from registration data, but subsequent updates are processed from title files.
And info about the driver...
Wisconsin DL
Records in this database: 2933650
Last database Update: 2007-02-16-00.0
Now don't do anything rash. :-)