Damn, saw this 5 minutes too late.
Since you're in business studies, it would have been a good opportunity for you to school your classmates and teacher on the merits of a solid trademark. A lot of what has been posted here can be described as "descriptive" trademarks. A business name like "Tony's Dry Cleaners" is much more difficult to get a solid trademark on it because it is so inherently descriptive. Similarly "American Auto Parts" or "American Standard" or... since you're in the UK "UK Automotive" are absolutely terrible names for businesses and you have no chance in hell of getting a trademark on it to prevent other businesses from using the same name, and you will never get any kind of brand loyalty as a result.
An example of a strong trademark is "Apple Computers". Apple is not descriptive at all of a computer company as is almost completely disassociated from the field. As a result, it's a strong trademark and easy for Apple to defend. It's also strong because Apples are simple, elegant, sweet, cheap, small, and easy to use. All of which is imagery that the Apple computer company would love you to associate with their products. Grey Goose Vodka is another example of a mark that evokes imagery (even if it's not as good as apple) and is not descriptive.
Rather than using "Eco-Pass" Driving school, you should use something less associated with it and possibly nature-themed (to suggest environmental friendliness) something like "Sierra" or "Summit". For some reason words that start with "S"... possibly because it's the shape of a good driving road... stick in my head. "Salamander" strikes me as something unique, nature related - they seem to be the first things that die when pollution shows up, and is a mark that people will remember.
Perhaps this is way more information than you wanted, but these are good ideas for prospective business owners to keep in mind. It's tempting to start out with a mark that is purely descriptive, "British Dry Cleaning", but it effectively puts a cap on how large the business can ever grow (and it's not memorable for customers).