Yes... you can.Its the health Insurance (travel insurance) thats the worse one. Trying to get cover for pre existing conditions on an extended stay is prohibitive.
No you cant .... you need the international licence.
Visas for short trips: you do not need one if you’re a tourist
If you’re a tourist, you do not need a visa for short trips to most EU countries, Iceland, Liechtenstein, Norway and Switzerland. You’ll be able to stay for up to 90 days in any 180-day period.
Different rules apply to Bulgaria, Croatia, Cyprus and Romania. If you visit these countries, visits to other EU countries do not count towards the 90-day total.
You may need a visa or permit to stay for longer, to work or study, or for business travel.
Travel or do business in Europe: Brexit guidance
Find out how new Brexit rules apply to things like travelling, working, studying and doing business with Europe in or with EU countries.
www.gov.uk
If you want to drive and you have the normal photo ID you are fine:
Driving in Europe
You do not need an IDP to drive in the EU, Switzerland, Norway, Iceland or Liechtenstein if you have a photocard driving licence issued in the UK.
You might need an IDP to drive in some EUcountries and Norway if you have either:
- a paper driving licence
- a licence issued in Gibraltar, Guernsey, Jersey or the Isle of Man