Computers are OK, it's the dudes you meet when you use 'em you have to watch out for...
Yep, a Diesel/Petrol powered 'Poota is a reasonable description of cars these days
Don't be, it won't be anything with the pootas that give you any grief
Yep, agree, WHEN you get a Scan gauge you will see that they like a bit of welly.
Not 'flat to the boards, burst off the line at every light welly' but get the sucker up in the torque band and keep it there then feather right off when cruising speed
Yes, but get used to what is normal and perfectly acceptable "spikes".
Almost every ECU controlled VNT turbo on the planet (and there are tens of millions of them) are 'under' damped and will exhibit an oscillation when compared to an 'over' damped mechanical system.
The spikes are a normal and it is only the changed magnitude that is an issue