Wotcha and welcome
emissions should be less as its not burning as much fuel compared to the turbo??
If you really like the blue go for that one and spend money saved on the spoiler and some wheels
as said the insurance will be cheaper on the non turbo car, as a member on this forum we do get a discount with Adrian Flux so give them a call
nice to see someone has read the how to thread before asking a question nice one ;)
keep us posted :)