You wanted some photos of the Avon 850:
There's several here. Haven't sorted them yet, just took loads for reference purposes. Would be interested to hear what you think. We built the boat for the show. Handles and performs like a 620, unlike some of the other 8 metre RIBs that are a bit tame. It has a massively deep V and a nice raised bow, although conditions were never really rough enough to push it to it's limits!
With regards to the 300 and 350 engine, as mentioned it was originally designed for the US market and has been hugely popular over there, they of course prefer the big block V8's to the higher reving 6 cylinders. The V8 has masses of torque and is an amazing engine. It is thirsty flat out, I managed 135 litres per hour, but it's pretty good at cruising speed as it's not working too hard. We had one on our Cobra 8.6 demo boat for quite a while and it was an awesome engine. We've sold quite a few and are happy to see some good brands like Scorpion, Avon, Cobra and others like Grady White etc. are fitting more and more. PS. I don't think it's ugly at all!