Speedtrack (also known as STC Speedtrack) was a messenging service that allowed Boomers to submit letters and pictures to Speedlines. The feature was little more than a simple email address, but was heavily marketed as being the superior alternative to "snail mail". If readers were to use Speedtrack, they also had to include their full postal address in their email in order to receive a prize for their work. Although Speedtrack could not be used to get help for games, queries could be sent through the account that could be answered in the Q Zone.
The original Speedtrack email address was to Richard Burton's work account, as advertised in Issue 58. The address was updated in Issue 74, redirecting submissions to an STC branch of Egmont. Although Speedlines returned from its retirement after Issue 140, email submissions were no longer encouraged.
Sonic the Comic Online still accepts email submission to Speedlines, but no longer calls the service Speedtrack. Although postal letters have been phased out, current "Megadroid" Stiv can be contacted in the Message Zone.