Tire wear
Sagging upper control arm bushings will cause the camber to become negative, resulting in inner edge tire wear.
Barring some catastrophic failure due to rust, the most common cause of the front wheel tilting inward at the top is failure of the upper control arm's inner bushing, where it's bolted to the inner fender.

Rotted out Lower Control Arm Bushings will cause outer edge Tire Wear and unless they are extremely bad you cannot see the Bushings are no good.
Personally I would not replace more then is needed to fix the issue (I say that because over the last Year my car was hit and run in parking lots X2. An accident can turn you prize into junk quickly.). But, you should check all.

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84 300D, 82 Volvo 244Gl Diesel