ask what the road tax will be for the IS you may have a shock,
if before any discounts the car's value exceeded £40k after the
1st April 2017 you will be given the pleasure of paying an
extra £320 per year on top of the road tax for your car (£140)
if you pay 6 monthly then your road tax will be circa £488 per annum,
you will pay this upto and including the 6th years road tax renewal
then from the 7th year you wont be liable for the £320 just the cars road tax of £140.