t4 caravelle vr6

Hi Guys I am new to the site & am looking for some info please. My 98 VR6 Velle Auto has just done it's engine at 151,000 miles. I have the opurtunity to purchase a Sharan VR6 Auto which I beleive has the AAA engine code, mine is an AES. I understand that the AAA is 174bhp, where as mine is the...