Thanks a lot everyone, for your continued interest and suggestions. They are all extremely insightful and reflect your depp interests and understanding in the way these machines work. I will now run tests along your lines and make a detailed hypothesis and plan of action before I approach the support engineer. There are two further observations I wish to share with you.
1. I have been 'drawing' a certain mileage out of the car by moving to higher gears at lower RPMs. When I do not drive like myself and go a little with the traffic's flow - in short , speed up. Although the mileage drops, the car takes longer to heat up.
2. The onomatopoetic word 'sputtering' is EXACTLY how I would describe the sound.
3. The car's power is perfectly allright.
Please do keep sending any 'flashes' you may have.
Thanks and best regards,
Daniel
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