Seaway Export offers car export services from USA to Belgium via following ports of loading (POLs):

Port of Savannah

Ocean container with final destination of Belgium will be delivered to one of the following ocean ports: Antwerpen, Zeebgrugge, and Ostend.
 
We also offer Roll-on Roll-off service to the port of Antwerpen for oversized equipment, such as tractors, combines, excavators, graders, buldozers, asphalt and concrete machines, other agricultural and construction machinery.

Belgium ports are serviced by all major shipping lines, including APL, Maersk, MSC, Evergreen, OOCL and others. Service offerings will be weekly and even more often. The transit time from US East coast will be 12-16 days, and from West coast around 22-26 days.

Most vehicles, motorcycles and heavy machinery can be easily imported into Belgium without major goverment restrictions.