The Lexus policy provides third party cover in the EU:
SECTION 6 USING YOUR CAR ABROAD
EUROPEAN UNION/ EEA COMPULSORY INSURANCE
Your policy provides the minimum compulsory insurance in the countries listed below. Please note that this minimum compulsory insurance does not provide the same level of cover as your policy.
Andorra, Austria, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany,Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Montenegro, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland.
If you wish to drive abroad, you must ensure that you have any documentation required to evidence insurance. If you travel to any of the countries listed above, you may need a Green Card in addition to your Certificate of Motor Insurance to evidence you hold the minimum compulsory insurance.