There's some explanation for that..
Mine are only assumption, might not be true in your case but are true in a controlled crash/collison..
cost of repairing are not inversely proportional to the safety of a car..
in modern automobile, there's crumple zone..designed to absorb the impact of a crash..
it extend the 'impact duration'...Teana might have more 'crumple zone' than a myvi...and is a supermini..
Piercing...smaller object will penetrate

more when crashed into a bigger object (with same mass)..
in this case (logically), Teana are heavier..so this explanation might not be true in your case...
Angle of attack (not GT Wings)..vertex or edge (bucu) of any object can withstand higher force...
I suspect the Myvi hit your Teana with it's front left vertex (correct word?)..
Thanks. I may be a bit suspicious. In the collision, the welded joint between the side panel and the bottom of the boot opened up. Do you think it is designed to be so or is it lousy quality? US Teana is class A. Malaysian Teana is class B. I already had a few electronic components kaput on me but thank goodness it is still under warranty. The front door seals on both sides came detached. Another Teana owner alerted me to the problem. I am not very wise about my car bcos I don't pay a lot of attention.
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Up the speed, and your Teana surely protect you more than the Myvi...
And you will repair more (might not be true)...for sure Teana with pricier spare parts..
edit: drawing warped...get the idea?