I have a question about macro lenses. You can still use a macro lens for 'normal' shooting right? Like could I use a macro lense for taking pictures of cars, but not necessarily be right up next to the subject? If that makes sense. If so, then is there any drawback to using a macro compared to just 'normal' lenses? I need to replace me 70-200mm Nikkor, because that is the only lense I use for motorsports because of the zoom it provides. Would there be any drawback to using a 70-300mm macro lens for this?