Hi ya and welcome to the site.
I've got a zs and thb it depends what you mean by go. Straight line speed on paper the

is alot quicker but after driving both they don't feel that much different. It's only when you look at the speedo you notice the difference. On twisty roads the zs can hold it's own with the

espically if you can afford to get it lowered. It's also alot down to the driver skill.
If you can't get the insurance on the

i can say you won't be dissapointed with the zs. Maybe get the zs then upgrade in a few years when the insurance is abit cheaper?
If u got any questions someone somewhere on the site will have an answer