Does the UKCAT require preparation?

The short answer to this is yes. There are hundreds of questions online. At first I found myself really slow and achieved low scores in practice tests. 

With time you start to develop your own strategies at being quick with answering the questions. In the UKCAT your ability to work quickly and your exam techniqe make the difference between a good and a bad mark. 

I can help with preparation in terms of conveying across the strategies and exam techniques that I have learned in taking the UKCAT and getting into medical school. I can recommend good resources and help you achieve the score you want.