Rails 3 - small route question

Hi,

resources :car do
    resources :wheel
    resources :engine do
      resources :piston do
......

so a normal url would be localhost:3000/cars/engines/piston...
I want to rename these objects to something similar localhost:3000/c/e/
p
Basically ONLY in the web url displayed in browser I want these words
car to be replaced with c and wheel with w and engine with e ...
Is this possible in Rails 3?

This declaration:

      resources :c, :controller => 'cars'

gives the following routes, as reported by 'rake routes':

    c_index GET /c(.:format) {:action=>"index", :controller=>"cars"}
            POST /c(.:format) {:action=>"create", :controller=>"cars"}
      new_c GET /c/new(.:format) {:action=>"new", :controller=>"cars"}
     edit_c GET /c/:id/edit(.:format) {:action=>"edit", :controller=>"cars"}
          c GET /c/:id(.:format) {:action=>"show", :controller=>"cars"}
            PUT /c/:id(.:format) {:action=>"update", :controller=>"cars"}
            DELETE /c/:id(.:format) {:action=>"destroy", :controller=>"cars"}

Chris