Solution Summary

CSOs need a rental car that reduces their operating costs.

SRC advantages are :

Small parking area. A SRC needs only 40 square feet. A conventional rental car needs 112.
Large crush zones. A six foot long nose would absorb the impact energy of a collision with a heavier vehicle. Small cars like the 8 foot long Smart car or the 9 foot long Think City are not safe in 50 mph traffic with 8000 pound SUVs. The SRC would be.
Tubular Metal Frame. A tubular metal frame would protect riders with a strong and rigid roll cage. Doors would have thick bars nine inches wide.
Long life and low maintenance costs. The SRC could cost 30% less, on an annual basis, to operate than a Honda Civic.
Resistant to damage. A SRC will have flexible plastic skins over a tough tubular metal frame. The plastic will bounce back from impacts that would dent metal.
Damages easily repaired. Bolt on plastic body panels can be quickly replaced if scratched or ripped.
Durable controls, vents and handles. Metal handles will last 20+ years.
Messes will be easily removed. Absorbent cloth seat covers will be attached to non-absorbent metal mesh seats.
Less labor to clean the interior. Interchangeable seat covers and floor mats will be swapped out in minutes.
Possible soft nose. If required to reduce injuries to pedestrians.
Low emissions. The SRC would either be battery electric, parallel hybrid, plugin hybrid, LPG or CNG.