Time for a brand new automotive… want recommendation

So I feel it is nearly time to exchange my outdated e90 3 collection.

I used to be pondering of getting a 2019 840i GC in a 12 months however I might have a automotive earlier than that.

So my plan is to get a 2019 330xi this 12 months then resell it then get the 840xi subsequent 12 months.

1. How dependable are these vehicles in comparison with my 328xi ?

2. Have automotive costs began to go all the way down to earth and normalize?

3. What do you consider my plan?

Thanks upfront