Craiglxviii
Senior Member
- Joined
- Sep 6, 2015
- Messages
- 17,781
- Reaction score
- 7,426
- Location
- Cambs UK
- Your Mercedes
- 970 Panamera Turbo; W221 S500L AMG Line, C215 CL500, W251 R350L AMG Line, plus several more now gone
That’s b@llocks. Roof type doesn’t impact towing weight. Pano or glass roof cars have additional roof bows and reinforcers to make up for the slight reduction in strength lost by cutting big holes in the roof metal.I only no about the roof due to my son being a caravan technician and he told me not to get a Mercedes with the panoramic roof.. as I do believe some of the higher powered cars r the same and cannot tow caravans.!
Also, look at the stress vectors of the roof (stops the car from hogging, or sagging lengthwise; and from twisting corkscrew wise; and protects occupants from being crushed in the event of turning over). Compare it to where the drive is located (rear wheels) and where the towbar is located (aft of rear wheels). The drive force vector goes straight aft through the towbar. The forces imparted on the towbar are translated into the rear side members which pass straight into the platform metal. Forces are all front to rear with some slight twisting of high winds are present. How does that affect the roof..? It doesn’t.
To qualify this, I work in Body Design for a major vehicle manufacturer. Your son’s understanding is flawed.
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