Best way to buy 911 turbo S

Looking to buy a 992 turbo S second hand. What's the best way to finance this. Car value would be around £150,000.

Is it better to finance? Is it better to buy cash? Is it better to buy via ltd company?

Do I need the money? Off course, but I'd rather not pay silly interests nor lose money being tied up in the car.

Basically what would you do in my position? Looking for the most optimal financial solution.

I'd be looking to keep the car for as long as possible.

Thanks