(30 May 2016, 7:33 pm)MurdnunoC wrote As Jimmi points out, there are sections of the X7 route which are direct with a limited stop (or express if you will) service between points. It was, although with the introduction of the X21 I don't know if it still is, the fastest available service between Sunderland and Peterlee; and after Wingate and Station Town, the service rejoins the A19 to offer a quicker service from that area down to Stockton and Middlesbrough.
The X21 is the fastest service between Peterlee Bus Station and Sunderland Park Lane Interchange.
The X7 is still faster than the 202 between Peterlee and Seaham, the 60/238 between Seaham and Sunderland and also the 21/21A between Peterlee and Wingate.