"warm" Odour

[MrDog2000]

Had my 2000 GS400 up to 165KPH for a few seconds then backed off to 100KPH about 3-min later came to a stop light. While stopped I thought I could sense a "warm" smell, but the temp gauge was perfectly normal, idle was perfectly smooth, transmission shifted properly.Has anyone noticed similar?

The ambient temp was 0C and I'd only been on the highway for 5 min. I burn 90 Octane with 10% ethanol.

It only lasted half a minute and went away.

Other than that, I was absolutely astonished at the passing power this car has. I used about half-throttle and went from 120 to 165KPH in about 5-6 seconds.