V6, Inline 6 or Inline 5??

[KFC]

I don't have the chassis yet as I might need to make changes to the chassis before it's built.

I'm trying to decide on what engine to fit to the "haynes" chassis.

V6? BMW 2.5L or 3.0L or the Fiat coupe inline 5 20v engine?

Obviously it would be much easier to fit the MX5 running gear, engine and gearbox. I just thought if I'm going to build it then do it with style, twin exhaust with that lovely sound of a V6.

I thought the duratec V6 would fit better than a M52 BMW engine, both with standard gearboxes fitted to their engines but the Duratec seems quite heavy, 200kg? Upset the handling too much?

Any thoughts on the complications of mix matching gearboxes and rear gearbox with diff out of 2000 Audi A6 to try and balance the car better or is it just not worth the agro?

Thanks in advance

Kev