I remember when we lived in Qatar, there used to be a young girl who lived near by and she had her dog pull her along - not sure that'll work with Muffin, for the following reasons...
(1) She's only 4.6 kilo's and I'm a big lump compared to that.
(2) She constantly stops abruptly in her sniffathon and that could be disastrous.
(3) She's a diva and she would be horrified I had even thought she might be suitable.
Ahhh....the open road.
Bring on the buns of steel!