Hi complete newbie here, looking to purchase my first boat which is to be a Maxum 2700SE 2003 but i have a few questions hoping to find some answers here

1) Whats the difference in SE or SCR models on Maxum cruisers

2) I see most are petrol is there much difference in fuel economy getting a diesel?

3) I also see a 2002 model, twin petrol, is this because its an SCR and does this give better performance and what about fuel consumption compared to single mercruiser?

4) And lastly why is their such a price difference over the net with the same model and same year, talking £15k here, is it because their are so many upgrades or is it greedy brokers?

Thanks in advance, and if anyone is an expert on Maxum cruisers from 2700 to 3100 models i'd like to chat