Smaller side view mirrors?

richkae said:

Is there a minimum size requirement for the mirror?

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richkae said:

Is there a minimum size requirement for the mirror?

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...S5.2.1 Field of view. Each passenger car shall have an outside mirror of unit magnification. The mirror shall provide the driver a view of a level road surface extending to the horizon from a line, perpendicular to a longitudinal plane tangent to the driver's side of the vehicle at the widest point, extending 2.4 m out from the tangent plane 10.7 m behind the driver's eyes, with the seat in the rearmost position. The line of sight may be partially obscured by rear body or fender contours. The location of the driver's eye reference points shall be those established in Motor Vehicle Safety Standard No. 104 (§571.104) or a nominal location appropriate for any 95th percentile male driver...

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TEG said:

Yes, there are different regs for Europe vs USA. For costs savings, some manufacturers opt for a "global mirror" that is jumbo to cover both regs.
In any case, look around at the cars on the street and notice that all are fairly similar in size.

Not exactly the easiest requirements to follow:
Standard No. 111; Rearview mirrors - Federal Motor Carrier Safety Administration

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