Bit of a basic question,what are the difficulties of putting a 1.4 tdi lump into a lupo gti 04 model,i have chance of a stunning lupo gti,but i like my diesels,but ive fallen in love with the lupo gti looks etc,im a reasonable diy mechanic and have access to full workshop tools etc,you guys on here are the experts though and i would be really appreciative of any help.