Dyno a 99 ML 430....(Gilly)

[99ML430]

Gilly..........How difficult would it be to "dyno" a M-Class..First of all, l have heard it is difficult to find a dyno shop with two sets of rollers, secondly, l was told that,considering that we are able to lock the differential..that it would be difficult to get an accurate reading!!!!, condidering that there are two sets of rollers, and they wouldn't be moving at the same speed...This is all second hand information.....l would like to hear from a MB guy..any help????????Thanks.....Am l way off here..or is it possible????