Again worst case scenario globally is GM is in third place behind Tesla and VW. Best case is they are in 2nd place.
I'm not sure what time frame you're looking at.
If it's between now and 2025, I think you're a bit on the optimistic side to think GM could surpass VW. I understand the ID.3 is getting a good reception in Europe (Norway sales numbers, etc.), and there's little reason to think the ID.4 won't as well. I expect those cars will sell way more than the Bolt, Hummer, and Lyriq, and VW still technically has the eTron, Taycan, and so on. Not sure what else GM will bring to the table by 2025. But to your point, I have not idea what they're doing in China, nor whether we should really count that. I mean, if they have a JV selling super-low margin $10K cars really well... is that really meaningful? Do they have some kind of good business in China? Does VW?
Anyway, if the horizon is 2030, I think you're WAY too optimistic, and GM will be doing well just to be a going concern. I do believe EVs will truly hit their stride by then, sending ICE sales off a cliff. I don't personally think GM can turn it around fast enough. If by 2023 they've got 2 EV factories and 1 battery factory, that still leaves more than 30 ICE-related factories in the US alone. I don't think they can convert even half of those facilities to EVs between 2023 and 2030 (rough cost: $2B ea, $30B total?), much less swap out half their current union employees for EV-skilled employees, find an EV sales and service model that works for their dealerships, and put the right products in place. Even if they have a number of solid EV offerings by then, I think they'll still be heavily dependent on ICE sales in 2030, and with sales taking a nosedive, I think their situation will be, at best, grim.
Finally, for you to say "Much like Tesla, future specs are placeholders" is disingenuous. First, as Elon was recently quite clear about WRT the Cybertruck, Tesla generally plans to exceed the teased specs. And I think they've earned our trust there. Did they really jump bump the Model 3 range to 350 miles? Whereas I don't recall a lot of (OK, any) non-Tesla EVs where the actual EPA range was a positive surprise. (Taycan? eTron? Polestar 2? Bueller?) And second, I'm not even talking about "specs." I am willing to give GM the benefit of the doubt that the Hummer will have 350 miles of range and 0-60 in 3s and whatever approach angle and blah blah blah. I'm talking about PRODUCTS. Let's look at GM's 10 best-selling vehicles (2019, total of 2M units across the top 10) and their starting prices, and you can tell me where GM has a competitive offering with ANY ANNOUNCED SPECS at all in their EV lineup:
#1/#3/#6: pickups, $35K, $30K, $26K starting prices, respectively
#2/#9: compact crossover, $24K/$25K starting prices
#4/#10: 3-row SUV, $30K/$49K starting price
#5: sedan, $22K starting price
#7/#8: subcompact SUVs, $22K/$23K starting prices
Note that only one of those has a starting price over $35K, and it's still under $50K. Granted, people buy more expensive versions of these cars -- I think I've heard the average selling price in the US is on the order of $40K, though at a quick look the published numbers are all over the place.
So, that's cool. Where's the GM EV (other than the Bolt, which has already proven to be unprofitable AND unpopular), that will address any of those top 10 markets, with a price approaching $40K (if not near the actual starting prices of 9 out of the 10 of those models)?
And if there's not even a plan announced for that, how is GM going to turn that around between the $80K Hummer/$60K Lyriq (which are $31K/$38K more than the corresponding top 10 base models) in 2023 and disaster in 2030? And not just put the offerings out there, but make them profitable enough to fill in for even 1M units of lost sales off that top 10 list?