What scan tool should I buy? I've seen the Foxwell 510 forever, would that let me diagnose the sensors and monitor and record live data when driving. I want to resolve this and then I'll have the tool for the 2006 which only has 79k miles

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2003 X5 3.0i Silver (build 07/03)
2006 X5 3.0i Blue
1977 Ferrari 308 GTB
1994 Ferrari 348TS Speciale #14/15
1989 Ferrari Testarossa