Speedster fit for everyday use?

Hello together, I’m so fascinated by the Speedster Turbo that I might want to increase it – but with the everyday fitness still have my concerns. Is the Speedster with its low ground clearance in winter naturally still reasonably mobile and is there any 175er/17-inch winter tires at all? Does any of you drive a Speedster also over winter and what do I have to think about? He naturally offers “no” comfort and little trunk, which for me but no real problem and the consumption would have to be relatively low due to the low weight, there would be no other car with such a good driving performance/price ratio as the Speedster and my “home brand” BMW offers nothing nearly equivalent. The Z4 is already so expensive in the basic version and even the stronger models are not nearly as sporty as a Speedster Turbo due to the high weight. I would be happy if someone from their experiences with the Speedster beric hten could – many thanks to greeting: Alex