In need of some help for project: GPS Tracker

The problem is not how to make a connection i guess...
WHEN it makes a connection it can send all GPS data to a website.
Then we now where the bike or car has been or is at the moment.
Problem is the GPS module outputs serial data to a SD card or to the arduino directly.

The big question is, can we read that data that comes from the GPS module and send it through the wifi-shield?
connection or no connection. maybe we can read the data with the wifi-shield and store the data on the internel SD card from the wifi-shield and send it all at once when there's a connection?

Stijn