TSR2 was designed to a British requirement many years before Tornado, so it had to be larger for the range we wanted and the older technology we wanted to put in it.(cutting edge at the time though!).
Tornado was a German, Italian and British design, so it was a compromise design which incorporated newer technology (smaller) and didn’t have the the range of TSR2 because the Germans would have been fighting on their doorstep.
The UK governments change of mind was due to the fact that they needed a TSR2 type aircraft and Tornado was the politically acceptable solution.

Take a look at the Thunder & Lightnings website for TSR2 info http://www.thunder-and-lightnings.co.uk/tsr2/survivors.html and http://www.tornado-data.com/ for Tornado.
In my opinion TSR2 outclassed Tornado in the deep strike role by a wide margin but probably wouldn’t have been as flexible.
Search Historical Aviation for TSR2 threads too.

I have read a very good book called TOTAL WAR 2006 by Simon Pearson, a theoritical history of a future war, in which 4 carriers are sunk by superfast midget submarines launched from a converted Typhoon submarine.
Sounds more plausable than a air attack.

Try the Gripen website
http://www.gripen.com/index.html

Looks very useful, heres something similar from the Netherlands
http://www.scheldeshipbuilding.com/schelde%20enforcer.htm
Schelde ENFORCER LPD 17000

Intakes look familiar?
British Hypersonic Research Aircraft from 50s or 60s
English Electric EAG 3273
http://www.aemann.pwp.blueyonder.co.uk/index.html

Excellent website by Adrian Mann.
http://www.aemann.pwp.blueyonder.co.uk/index.html
Avro 730