Buying a new car advice needed

[Carnmore]

What's the cheapest way to buy a new car- online car buyer, broker, dealer etc?

I've never bought a new car before so never had to choose optional extras - which extras are the most useful to have?

[Carnmore]

Thanks for the replies.

The car is the unfortunately named new Peugeot Rifter.

I'm looking at the 130bhp diesel version for towing and overall power. It has a 6 speed manual or 8 speed auto gearbox - the auto does appeal but am I correct in saying automatic gearboxes are unsuitable for towing?

Has anyone used Carwow? The buyer chooses the car and spec then dealers bid for the order.

[Carnmore]

Any thoughts on this?