i bought a tx4 from john patons in glasgow two and a half years ago this taxi is not fit for purpose,i have experienced most of the the same problems as most of you good people have mentioned. I took great care to have my services done at the main dealears at the correct intervils for the obvious reasons.picked the cab up at 4.30pm after its 130,000 miles service,less than 12 hours later the engine has pseezed, what does that mean i asked the reply was £5,000 please, so for what its worth i would say to anyone thinking of buying a tx4 THINK THINK THINK AND THINK most folk learn from there mistakes but it is a wise man that Learns from other peoples mistake THINK ABOUT IT