This Relationship is killing me

[minnetonka]

It feels like I've been trying to solve a Rubik's cube in the dark. I've got most pieces in place but have hit a stopping point...

The relationship?

1 - 1st form where the user enters two or more cars (car table).
2 - 2nd form has options (ie. everything from full size spare, to seat material, to color) available in several categories where they can select values (0,1,2,3) from a look-up table on how important each of these options are.
3 - 3rd form - Crash! For each option I now want the user to set a rating for each option comparing each car against each other. Example: For an option of seat material the user should be able to rate one car as a "3" for one car and a "1" for the other...and be able to do this for all options.

I've tried different types of relationships and queries but just can't seem to get it. I'm pretty sure its a Relationship, but... Ideas?

Thanks.

[minnetonka]

I have 5 tables:

Table 1 - Cars
ID Field - Autonumber
Car Field - Text

Usage: Can Add a car name in the Car field - e.g. Mom's car and Dad's car

Table 2 - Car Option
ID Field - Autonumber
Option Field - Text
Category Field - Lookup to Category Table
Weight - Lookup to Number Table

Usage: Can look at each Option and assign a Weight (0, 1, 2, 3) to an Option according to the importance that Option has to the user - e.g. Option of "Trailor Hitch" has importance/Weight of "3" for the user compared "Leather Seats" has a importance/Weight of "1" as lesser importance

Table 3 - Categories
ID Field - AutoNumber
Category Field - Text

Usage: Is a lookup table for assigning categories to Options

Table 4 - Numbers
ID Field - AutoNumber
Number - Number

Table 5 Ratings - Not sure if I need this or need to roll this into one of the other tables - read on....
ID Field - Autonumber
Rating - Lookup to Number Table

Usage: Is a lookup table containing values of 0, 1, 2, 3

So here is where I get stumped.

I'm trying to have the user -

1 - User enter a car - "Mom's" and "Dad's" - This works
2 - User then Weights each Option from "3" (Very Important) to "0" (No importance) - This works
3 - User then Rates each Option against the Cars - e.g. Option of "Trailer Hitch" for Mom's car is "0" (no hitch!) and for Dad's is "3" (has a hitch) - can't figure out how to do this!!

Can't figure out what type of relationship, or how to craft the query, or where exactly the Ratings are written. Any ideas welcome.