New civic or the 02-05 model with a custom made 1.6 ltr version of honda's CNG engine. or a CNG hybrid engine 
plus
steermatic type or cruisetronic transmission that doesnt fail on cng
air cleaning system,
remote engine startup,
auto shutdown of power windows,
cruise control,
airbags,
climate control,
better looking plastics or rexine,
alpine's usb mp3 player with bose's component speaker system,
music buttons on the stearing
GPS navigation,
HID lights as exquisite as BMW's,
back airconditioning vents,
built in tracker system.
phone
refrigerated compartment
maintenance free panasonic batteries :),
Mc pherson struts built by mc pherson
bullet proofed (but shudnt be heavy)
double windows (one darker like in Limousines 
cat eye removersthat would come down milimeters above road to remove cateyes
speed bumper grinders to destroy all the bad speed breatkers
and and and and.....