I mean if you have the money for these, then that's great but there are several options that I would consider first for a first car.
£3.5K on insurance?? Think that after a year it will still probably over 2.5K, it's so much money for something that isn't even an asset. Think that after 3 years, you'd have spent 9K on the car and 8K on insurance and at the end of it have a car that'll be worth 3K at best. That's costing you 14K for 3 yars of driving, plus fuel.
Definetly consider a smaller car with a smaller engine. You can still have a nice small car with a nice spec.