In Q1'26, TSLA's operating expenses reached a total of $3.78B USD, with R&D expenses at $1.95B USD and SG&A expenses at $1.83B USD, marking the highest quarterly figure in the observed period and reflecting accelerated investments in innovation and administrative functions. From Q2'23 to Q1'26, total operating expenses exhibited an overall upward trend, rising from $2.13B USD to $3.78B USD, driven by consistent growth in both R&D (from $0.94B USD to $1.95B USD) and SG&A (from $1.19B USD to $1.83B USD) categories, though with intermittent fluctuations such as a dip in Q3'24. R&D expenses showed particular volatility early on before stabilizing into steady increases post-Q4'24, while SG&A trended more linearly upward, underscoring TSLA's expanding operational scale amid competitive pressures in the EV sector.