Driven 300 Kms and here is my experience:
Key is uneasy to manage.
Engine knocks at startup as if loosely mounted.
AMT is very poor quality. Gear engages with lot of sound. 4th gear is reached too soon which makes knocking and feels irritating. Reverse gear is even worst. A bit of speed and you hear a LOUD gear box noise.
Climping is DIFFICULT, worst if u just stop at speed breaker. Poor pickup makes it scarey to drive at turns or crossing roads. Turning radius is bit high.
POOR plastic. Door rubber are coming off. Roof seal is improper at rear doors. AC grills have raw edges. Fuel and Temperature meters are poorly designed.
Seats are not easily manageable. You need to pull up the back seat and push the bottom to adjust. Some wires I see around the inside.
Breaking is taking long. May be ABS etc.
Noticed older Tiagos and feel that the color really fades as mentioned in several reviews.
Fuel average is about 13km.
Finally a overall poor product. I regret buying a Tiago.