z4m roaster & Autobahn

[e46m3c]

Hi Chaps,

Wondering what peoples experience of the z4m roaster on the autobahn is at speeads 130+?

Does being a rag top make it really noisey?

Thinking of building a 450 bhp charged z4m but it needs to be compentant and tolerable at 130 - 170 mph cruising.

bit of an odd question i suppose.

Anyway thanks.

[Herminator]

I've only done it briefly but it was fine. The only concern I had was the car being fully loaded with stuff as I was relocating, made it very apparent braking performance wouldn't be as good as normal, so I kept generous distances and only pushed it on open stretches.

Road/wind noise isn't much worse than normal motorway speeds. That being said, the noise on some motorways has contributed to me thinking of buying something non convertible.

[tjlazer]

The insulation is pretty good and the coupe is also fairly noisy. At the end of the day I had a convertible but now have a coupe, entirely based on looks and rarity. If you're going to get a z4m you may as well get the hardtop. It's just cooler

[e46m3c]

i like seeing the alps as i blast through and get a tan at the same time. rag top for me