I assume you mean the ST170 as you mention "back at school", if so then yes they aren't really what you would call fast, depends on what he defines by heavy, they are average for the class of car, the MK2 is faster and has more power than the MK1 FRS! Both are known to be thirsty but at last with the latter you can kind of justify it with the performance and the sound of a lovely 5 cylinder engine!

Martin