Baytree

Hello all, I am in the early stages of researching to buy an MG TF for my wife.  Price range up to £3,000 but prefer less.  I understand there were some additional safety and handling features introduced for the 2005 model year. which I believe was the last year of Rover production  How do I identify a model with these updates, worried may buy a 2004 model which was first registered in 2005.  Am I worrying too much about seeking a 2005 model, should I buy a 2003 model at half the price.  Many thanks for any help.  I also use a motorcycle and a motorhome forum so understand how irritating it is when a newbie asks a question then disappears so will my my best not to do that.