Playback Tach's

I reckon this is what them people with them laptop computers all hooked up to their car like on fast and furious use? I know my wide band o2 sencer has a port for gaining data.
Being able to watch a play back of all that information along with the capability to adjust timing, fuel ratios, and shift points on a lap top would be cool, but for a hobby racer like myself (and others and I won't mention anybody by name) a complete functional setup for an older car like mine? I'm just priced out of for hobby purposes. The bits and pieces of information add up though....