First of all, make sure you’re buying from a manufacturer-approved dealer, not via a 3rd party company or broker. This way you guarantee your car will come with a full UK warranty and can be serviced at any dealer in the country, regardless of where you bought it.
The price should include VAT, 12 months road tax, and all the options you specified. Also establish that the deal isn’t dependent on you paying in a certain way, some dealers may only offer a deal dependent on you buying in cash, or from taking their finance.
Ultimately, it’s hard to know whether you’re getting a good deal, unless you go and speak to lots of dealers to get a range of prices – that’s why we created carwow!