Proton Engineering Team Sharing about 2019 Proton Saga (TLDR translated by BOTAK_WAI)
Development1. 14-15 months development time.
2. Changes ware made within budget to ensure the car price stays under RM40k.
3. Saga 2019 and Iriz/Persona 2019 handled by different team, both teams don't know what's the upgrades done by each other. That explains why Saga gets the LED map lights from X70 while Iriz/Persona get the Hi Proton headunit.
4. Why Iriz/Persona did not get the 4AT, Saga engineering team replied B-Segment is a more competitive market, CVT is more suitable for Iriz/Persona.
4AT1. Gearbox is supplied by Hyundai, but tuned by Proton engineers.
2. To mate with S4PH Campro VVT, the components like crankshaft, torque converter, drive shaft, gearbox housing have to be redesigned.
3. Therefore, Saga has undergone collision, emission, heat dissipation, and performance test again. (lab-test and field-test in different countries)
4AT Shift Pattern1. Saga 2019 comes with P R N D S. (where D=Normal Mode, S=Sport Mode)
2. Engineers consider that the targeted consumer group is not well-versed in automotive knowledge, therefore they introduce S mode to replace 3 2 L mode.
3. You can rev the engine to higher rpm before upshifting under S mode.
4. There's hidden uphill mode where it will be automatically activated once detected your car is being driven up to certain angle of slope, the system holds a gear for a longer duration before upshifting to ensure the car has more power for uphill.
Fuel Consumption1. The combined fuel economy of Saga 2019 is 6.7 L/100 km, under NEDC test procedures.
2. Urban driving Cycle [2016 Saga CVT] better, Extra-urban driving Cycle [2019 Saga 4AT] better.
Chassis Upgrades1. 2019 Saga uses Iriz/Persona brake rotor, which is 1 inch larger than the 2016 Saga.
2. 2019 Saga Rim PCD now is 114.3, while 2016 Saga Rim PCD 100. This is not a plug and play upgrade, so 2016 Saga owners no need think about changing to the 2019 Saga Rim.
3. Engineering team has done modification on chassis to fit the new brake system, thus the ESC, ABS, and other related electronic safety system were recalibrated to match the new brake and gearbox.
4. New gearbox and new brake increase the car weight, therefore engineers also redesign and retune the suspension system, and sent it for safety test again.
source:
http://www.automachi.com/2019/08/five-thin...19-proton-saga/ I love these data! thanks man! Always love to see from engineering's perspective when they develop for a new car