I did non-immigrant O based on marriage for the sole reason of being able to work and possibly PR or citizenship. I also don't have to get some scam thai medical insurance.
non-immigrant 'O' visa is 400,000 THB in a Thai bank in YOUR name only. And savings account or otherwise is probably irrelevant. Mine is in Bangkok Bank and just sits there as my income won't be verified by my essentially useless embassy (US). Just have a Thai bank account with 400,000 and 2 months of maturity and you're fine.
The TM30 says you are a foreigner staying in a certain place. The yellow book says you are a foreigner staying in a certain place. I guess I don't see the difference.
In the US, Toyota has the best reliability and resale value of all. They skimp on "features" because they don't want complex gadgets that will go bad quickly. They aren't the best in fuel economy. Worldwide, however, they oversee their manufacturing quality co trol regardless of the country of manufacture. I bought a Ford Ranger here in Thailand but I've only had it for 2 years so I can't say much about the long-term concerns. From my US experience though, I'd say to go with the Toyota
There are a lot of tutorials on Youtube with professionals explaining the new laws and they will point out where there is still ambiguity. Bottom line is if you exceed 180 days in-country you are a tax resident. Depending on your country of origin, there may or may not be a double tax agreement in place so you would not pay tax twice but may incur tax on any excess rate in Thailand over the rate you paid at home. Some incomes are exempted entirely (e.g. Social Security retirement from USA). Best see some tutorials and then, if necessary see a tax pro in Thailand.
My first trip, I had an IDP from the US along with my US driver's license and passed through MANY checkpoints going on a road trip from Chiang Rai to Umphang and was never asked for anything other than my passport. That was a tourist visa trip. Now on an non-immigrant "O" visa and recently got my Thai license. I don't recall any point where the issuance depended on the type of visa. I don't think they really care. In any event, I did the online video training and got my QR code showing completion and got through the process no problem.
Lots more than that. They won't recognize the marriage if the documents aren't translated and certified, along with a myriad of different requirements. The non-O based on marriage should be requested from the spouses country of origin. The Thai embassy and consulates can provide the list of requirements. It involves a minimum of money in a Thai bank and a whole bunch of other stuff.