...that usually can be summed up with "make everything wider, higher, bigger!" you should be aware that server resources are limited. If it was possible we would have made only 4096x4096 servers with a limit of 5000 for all types of vehicles and 2000 companies. Well, you guessed it already: it isn't.
The current server settings are already taking the resources we got into account. So please refrain from such suggestions or at least keep the big picture in mind. If you really need to suggest an increase of something on one server, also say what other server should have resource usage decreased in return so the overall balance stays the same.
That said, all other suggestions are welcome and will be discussed, us admins often talk about possible changes ourselves and we're open to new ideas any time.