Van, looks good signwritten.
However, a signwritten estate car can be more eye-catching in some circumstances......
If you are carrying lots of valuable gear a van stops people seeing what's on board, but for office cleans an estate car will carry more people....
First choice would be a Ford Focus estate, in white, nicely signwritten...
If you're self-employed, there's no tax advantage to a van... if you are an employee then a company car hits you with more tax than a van.