I attached the magnet on a long cable tie using a suitable shrinking tube. Then attached the cable tie on the drive shaft joint as in the pictures above. Corolla's gearbox had a suitable place to close to the drive shaft joint to mount the speed sensor. With the speed sensor working, I now have a more accurate speed meter and also the delight of energy consumption (Wh/km) metering.
As overheating seemed not to be an issue, I wanted to test if closing all the car's front openings would make any difference. At least the car would get less dirt into its engine room. I made a new solid front grille from black painted acrylic sheet. All the bumper's opening were simply taped over using black gorilla tape. This solution has now survived well for about 7 months of driving, also during winter.
Seems that I had plenty of time last summer since I had tried to even restore the car's paint :)
10,6 kWh/100km was Corolla's last summer's consumption record. In Corolla's circuity only the traction battery consumption is measured by the Cycle Analyst so lights, radio etc. would need to be added in the result. Assuming 200W for them would add roughly 0,1 kWh in this half hour run so the total consumption still remained under 11 kWh/100km at best. During summer time the Cycle Analyst typically gives me 11-13 kWh/100km readings, with my average speeds of less than 50km/h. 80 km/h goes with around 15-16 kWh/100km :)
