I HAVE A NIVA WITH PEUGEOT DIESEL ENGINE. CAN YOU TELL ME WHAT MODEL ENGINE THIS IS AND WHERE I CAN OBTAIN A SERVICE MANUAL FOR THIS ENGINE. WOULD ALSO LIKE TO KNOW WHAT AUTOMATIC TRANSMISSION I COULD INSTALL WITH THE 1.7 L GASOLINE ENGINE. I UNDERSTAND THAT THE 1.7L ENGINE IS A FIAT DESIGN AND TYHAT A FIAT AUTOMATIC WOULD FIT. DO YOU KNOW WHAT FIAT CAR HAD A AUTOMATIC TRANS? AT THIS TIME I HAVE THREE NIVAS IN MY SHOP, TWO FOR COMPLETE RESTORATION AND ONE I USE FOR SNOW PLOWING.