Chip's right: it means if you're running on a VTS sheet (including any required restrictors/boost limits), you run that weight +5%. And it's intended that tire make/model is free, not required to be Toyos (VTS does not specify tires, that's part of the appropriate Appendix A).

I'd have to look into the VTS of specific cars, but generally speaking turbo cars in 2009 Touring were classified pretty heavy (the 1.8L A4 was 2900, for example)...add 5% to those and they should not be a factor. But, if we find an outlier, you can be assured it will be restricted in some fashion back into place...

GA