"Obsidian" Rally cars

This post is supposed to show the groups that would compete in “obsidian” rallies
Group U: Car is from 1952 or earlier and has a drivability lower than 20
Group U+: car is from 1952 or earlier and has a drivability above 20
Group F:Car is from 1977 or earlier and has a drivability lower than 30
Group F+:Car is from 1977 or earlier and has a drivability above 30
Group E: Car is from 1990 or earlier and has a drivability below 40
Group E+: Car is from 1990 or earlier and has a drivability above 40
Group D: Car is from 2005 or earlier and has a drivability below 45
Group D+: Car is from 2005 or earlier and has a drivability above 45
Group C: Car is from 2010 or earlier and has a drivability below 50
Group C+: Car is from 2010 or earlier and has a drivability above 50
Group B: Car is from 2017 or earlier and has a drivability below 56
Group B+: Car is from 2017 or earlier and has a drivability above 56
Group A: Car is from 2020 or earlier and has a drivability below 60
Group A+: Car is from 2020 or earlier and has a drivability above 60
Group S: Car is from any time period and has a drivability above 85
Group S+: Car is from any time period and has a drivability ABOVE 100
Fastest U
Fastest U+
Fastest F
Fastest F+
Fastest E
Fastest E+
Fastest D
Fastest D+
Fastest C
Fastest C+
Fastest B
Fastest B+
Fastest A
Fastest A+
Fastest S
Fastest S+

So do we just post them here?