I’m currently researching how the motor can be upgraded to give a bit more speed, torque, reliability, range, with regen capability. I found a few references to using a motor from D&D Motor Systems, Inc. Their quote page asked for quite a bit of information, and I scoured the Internet to put a list of specs together.

Project
Type	Sebring-Vanguard 1976 CitiCar
No Load Weight	1250 lb
Full Load Weight	1750 lb
Drive Wheel Diameter	20.39 in
Rolling Tire Radius	9.82 in

Mechanical Design
	Direct Gear Drive
Mechanical Connection Type	10 Tooth Internal Spline
Differential/Transmission or Belt/Chain Gear Ratio	6.83:1
Differential/Transmission or Belt/Chain Efficiency

Performance Requirements
Manufacturer	General Electric
Wound	Series
Horsepower	6
RPM	4000
Max Vehicle No Load Speed (level ground)	38 (10/20/38)
Max Vehicle Full Load Speed (level ground)	38
Minimum Vehicle Full Speed up 5% Grade	20
Vehicle range	50
Time Rating	INT
Class	F
MOD	5BC 49 JB 327 C
Volts	48
Amps	125
Current	DC
Serial Number	AMN

Electrical Requirements
Controller Make, Model and Amperage	Vanguard Multi-voltage Speed Control 12/18/33 mph
Max AMPS	250
Volts	48
Battery (Pack) Type	Eight 6-volt flooded lead-acid
Total Battery Pack Amp hours	132
Duty Cycle Requirements

• D&D ES40-56 motor (72v) on a rebuild on evdrives.com
• Dale Wendorff used a D&D model ES40MOD / 9hp / 72v
• CitiCar on top classic cars – ES-40D-6
• Quoted for ES-40D-56 $625.00 48v/72v