To find the perimeter (circumference) of the car tyre, you can use the formula for the circumference of a circle:

\[ \text{Circumference} = \pi \times \text{Diameter} \]

Given:
- Diameter = 49 cm
- \(\pi = \frac{22}{7}\)

So,

\[
\text{Circumference} = \frac{22}{7} \times 49
\]

Calculate it step-by-step:

\[
\text{Circumference} = \frac{22 \times 49}{7}
\]

\[
= \frac{1078}{7}
\]

\[
= 154 \text{ cm}
\]

Thus, the perimeter of the tyre is 154 cm.

The correct answer is D. 154 cm.