How many sensors are there on a 2000 Ford Mustang base?

I'm confused. I have a check engine light. I changed bank 2 sensor 1. I believe this is the drive's side, right? And sensor 1 = upstream bank 2 = driver's side & sensor 2 = down stream bank 1 = passenger side, yes?

So there's just 1 02 sensor for each side, or is there 4? For example there's both an upstream and down stream 02 sensor on the driver's side, and an upstream and down stream 02 sensor on the passenger's side. I'm confused.

What's a fair price to pay for this car?

I'm looking into buying a used car and came across a 2010 Ford Mustang GT. The car has 23,500 miles on it, cushion seats, and a 5l engine. What would you consider a fair price to pay for this car?

How to fix my cars check engine light?

I have a 1998 Ford Mustang 3.8 leiter 6 cylinder car. My tag is expired but my check engine light is on and I don't know how to turn it off. The previous owner said that she use to turn it off by unplugging the battery and that it would reset the check engine light. During the process of doing this the first time we accidentally left the metal touching the battery still and now my head lights nor my brights will turn on. The check engine light went off but turned right back on when the car was restarted and did this the second time we tried as well. When it was tested at auto zone they said I needed an Oxygen Sensor, Camshaft Sensor, EGR Valve and an EGR Valve Sensor when I called my dad he said only the Oxygen Sensor had anything to do with the check engine light. My question is what did I do to my head lights? What do these senors do and are they majorly important? && how can I cut off the check engine light long enough to get emissions? Please don't be mean I know I'm bad with cars & thanks for all the help.

Which of these 3 cars should I purchase? And why?

22 years old, in New York. I'll be purchasing a new car in the next month and have decided between these 3 models/types. Which should I purchase and why?

2014 Ford Mustang V6 Premium

2014 BMW 335/535 Series

2013/2014 Mercedes-Benz E350/C350

Ford 302 cam modification

So i have a completely stock 302 out of a 1973 mustang that i'm swapping into another 1973 mustang. Other than a after market exhaust and a weinand intake with holley 600 or 650 (i don't know which, could find the code on google). I'm looking for a cam to use when i tear the engine down and rebuild. I'm gonna swap the heads to gt40 heads so what is gonna work with gt40 heads

What will I need to do to my suspension when I put a C9VE 429 big block ford in my 1967 Mustang Fastback?

What will I need to do to my suspension when I put a C9VE 429 big block ford in my 1967 Mustang Fastback? - 1

Added (1). I know I will need Crite's motor mounts, different headers or stock 429 manifolds, thinner radiator, power brakes with a slimmer brake booster but wondering if the 1967/68 390/428 stock big block Mustang suspension will work and be strong enough to support the engine comfortably. I hope so because I want to use the stock 1967 Mustang big block suspension. I do not want to use a Mustang II or Tubular independent rack set up.