Bench scopes are not made for that job.
Picoscope software is excellent and has thousands of saved waveforms and hundreds of guided tests.
Take a peek here:
https://www.picoauto.com/library/automotive-guided-testsPico is kinda expensive, but worth it for business. You can save by not buying kit, but just scope and basic accessories. All of the other accessory cables are just that, cables, and can be had from other sources or made by yourself. Current probes can be used from other manufacturers (although Pico sells good quality probes, same quality ones from other sources won't be much or at all cheaper). Some other sensors (like capacitive ignition pickup) can be had from Hantek for fraction of money, and some probes are piece of PCB with piece of coax.
One good thing about Picoscope is that you save all measurement on a PC in a file, that you can open later and analyse it. You can also open it on another PC without Picoscope connected. So you can save something you don't understand and send to someone to take a look at it.
Other option if Picoscope is too much is Micsig ATO1104. That is a tablet scope that is super handy.
There are automotive scope from Hantek. I don't know anything about them, so someone else must chime in. They are very affordable.
Then there are cheap handheld scopes that are not automotive, but you can still see many things with them if you know how.
Fact is, if you are new to car data analysis with a scope, Picoscope gives you instrument, software , learning and reference material. It is quickest way from zero to useful.
And you can save few hundred bucks by buying simple accessories from other sources. Get scope, basic probes and current probes from them. The rest are mainly cable accessories that you can get from elsewhere and maybe not all needed at first. You can get them later, and also will damage them and have to replace them occasionally.
But for business, even kits (which are not too expensive bun also not cheap or great bargain) are excellent value, because you just buy it, it comes in the mail, you open it and start working right away...
If that holds value, Pico is the way. New software version 7 is in the making, will be released sometimes next year, that is full touch capable, so can be used with tablet PC. Current version also works, but new will be much better..