It does have a 'creep' function, for use in traffic, though it cannot be relied on when hill-starting. See my entry on this post for details...
Renault Modus recommendation
I guess economy will be similar to a 1.5 Megane - I get 55 to 62 average, not a good as a clio - probably due to aerodynamics (i.e. it's more brick like than a Clio